A Westchester psychologist said the extreme heat can test one’s mental health, just like it affects our physical health.

Dr. Harris Stratyner, from Stratyner and Associates, said the hot temperatures can impact one’s mood significantly.

He said it can have so much of an impact that it can make us feel like “we’re going out of our minds at times.”

The doctor said the heat can also affect people on certain medications.

“Some patients, who when they take medications that are psychotropics, meaning change in mood, change your thinking, your cognition, etc., can have difficulties with what’s called thermoregulation,” Stratyner said.

To prevent heat stroke, or having a short temper, the doctor encourages people to take action to stay cool.

Play Extreme Heat Continues Into Wednesday

Tens of millions across the Midwest and Northeast sweltered under a brutal heatwave Tuesday, as actual temperatures — not just the “feels like” — soared past 100 degrees. At least one heat-related death was confirmed as several cities shattered records and power outages spread.

Record-breaking temperatures are expected to continue into the later half of the week for large parts of the country. Check out our full forecast here.

Here are our live updates from throughout the day Tuesday:

(04:30 p.m. EDT) Same Pattern That Brought The Heat Is Preventing Clouds

From content meteorologist Sara Tonks:

When the weather is hot, shade becomes a vital resource, but unfortunately it’s one that the Northeast, which is baking under the ongoing heat wave, is lacking. The heat wave is the result of a strong bubble of high pressure aloft also known as a “heat dome.” Air in the center of the heat dome sinks, which suppresses cloud formation. The same weather pattern that brought the hot air is also preventing the formation of clouds, which could otherwise provide relief to the region.

Here’s a look at the current cloud cover (or lack thereof) for much of the U.S.:

(04:16 p.m. EDT) Temperature Whiparound

These are some of the wildest “feels like” temperatures right now across the country:

Baltimore – 110 degrees

Philadelphia – 106 degrees

Boston – 106 degrees

Charleston – 106 degrees

St. Louis – 105 degrees

Charlotte – 105 Degrees

Nashville – 104 degrees

Memphis – 104 degrees

Indianapolis – 103 degrees

Atlanta – 102 degrees

Dallas – 100 degrees

(04:01 p.m. EDT) New Yorkers Asked To Conserve Power

Con Edison, the primary electricity provider for residents in New York City, is urging customers to cut back on power usage as scorching heat pushes its power grid to the limit, sparking outages across the Tri-State area. An urgent Con Edison alert warned customers that if they didn’t unplug appliances and ease up on energy use there could be an increased risk of blackouts.

(03:46 p.m. EDT) Updates From Our Readers

We asked, you answered.

Justin in Revere, Massachusetts: “It’s a hot one today, we just hit 100 degrees!!!!! I’m staying inside cool and relaxed.”

Anna in Edison, New Jersey: “Use frozen towels wrapped around your neck! You will stay cool for a while 👍🥵”

Text us at (404) 793-7182 and tell us how you’re holding up in this weather.

(03:33 p.m. EDT) Heat Warnings And What They Mean

Heat Advisory: Issued by the National Weather Service when actual temperatures or “feels like” temperatures are expected to increase the chance of heat-related illnesses significantly if precautions aren’t taken. The exact temperature or heat index value that will trigger such a warning varies geographically.

Extreme Heat Warning: Issued by the National Weather Service when dangerously high heat is expected or already occurring. Prolonged exposure to this level of heat will cause life-threatening conditions and immediate action is needed to protect yourself.

Bottom line: A heat advisory means “be careful;” a heat warning means “this is dangerous, take action now.”

(03:22 p.m. EDT) Here’s How To Know If You Have Heatstroke

Heatstroke is a medical emergency that occurs when your body temperature hits 104 degrees or higher. Warning signs include confusion, slurred speech, rapid pulse, hot and dry skin (or heavy sweating) and losing consciousness. If you or someone you know shows these symptoms, call 911, move to a cooler place and try to lower the body’s temperature as quickly as possible.

To learn more about other symptoms you should be looking out for, click here.

(03:07 p.m. EDT) Envy These Parts Of The Country Today

From content meteorologist Sara Tonks:

While the Northeast is baking in temperatures up to 30 degrees above average, a lot of the country is quite literally cooling their heels for some hotter weather. El Paso, Texas, has a forecasted high today of 84 degrees, which is 12 degrees below average. Meanwhile, Boston has already hit 100 degrees this afternoon.

Across the Southern Rockies and High Plains temperatures are going to continue to lean slightly cooler than normal through mid-week.

(02:51 p.m. EDT) Hydrate Or Die…drate

A sweet (but serious) nudge from our meteorology intern, Miriam:

It’s fitting that yesterday was National Hydration Day. So this is your friendly reminder about the importance of staying hydrated, especially during this heat wave.

Staying hydrated is vital for both your physical and mental health. Even just a couple of hours in the sun can cause mild dehydration. You most likely don’t drink as much water as you should, so it’s especially important to stay hydrated over the next few days.

So while you are reading this right now, go get up and drink a glass of water. Yes, you!

(02:40 p.m. EDT) Quantico Under Black Flag Conditions

Marine Corps Base Quantico, Virginia has been placed under black flag conditions, prompting a full suspension of non-essential outdoor physical activity. Black flag protocols activate when extreme heat significantly increases the risk of heat illness.

The heat index in the area is currently 103 degrees.

(02:27 p.m. EDT) Speaking Of Records…

From senior meteorologist Jonathan Erdman:

Manchester, NH: First 100+ temps since July 22, 2011(only their ninth day of triple digit heat in records dating to 1885)

Boston, MA: First 100+ temps since July 24, 2022

Philly: First 100+ temps since July 18, 2012

Atlantic City (102 degrees so far): First 100+ since July 21, 2019. Hottest day since July 23, 2011.

Wilmington, DE: First 100+ temps since July 18, 2012

(02:19 p.m. EDT) Heat Records Defined

Take a break from the heat with this quick vocab lesson from our Jonathan Belles:

Record high temperature: This is often the highest temperature recorded on a specific calendar day. These are more fragile than monthly records and dozens of these records can break during a heat wave.

Record warm low temperature: This is like a record high, but for the minimum temperature during a calendar day. These are often associated with high humidity, which keeps temperatures from falling overnight. These records can be correlated to dangerous sleeping conditions because when temperatures don’t cool off during the night, your body doesn’t recover from the day before. Also called a record high minimum temperature.

All-time monthly high temperature: Like a daily record high, but for the entire month.

All-time record high: Like a daily record high, but for the entire existence of a weather station. When these records are clinched, the station has never been hotter before.

(01:54 p.m. EDT) Voters Brave Heat In NYC

Sweltering heat in New York City (forecasted heat indices are soaring above 100 degrees) could impact voter turnout in the city’s mayoral primary today, especially among older and heat-sensitive populations. Campaigns have called for air-conditioning at polling stations, fans and water provisions to protect voters.

Election officials have also warned that heat-induced power outages could disrupt voting equipment.

(01:46 p.m. EDT) How To Take Care Of Wildlife In Dangerous Heat

Heat waves are dangerous for more than just people and their pets – wildlife can be severely impacted too. To help out your local wildlife, provide access to water in your yard in a shady spot if possible and keep any bird baths full.

“If you find an animal that is in need of medical care, contact your closest wildlife rehabilitator. If captured, ensure that the container it’s in is well ventilated and stored in a cool place until transport. Keep your car quiet and cool during the drive,” advises Tamarack Wildlife Center in Saegertown, Pennsylvania.

(01:36 p.m. EDT) Commuter Crisis

From producer Joy Kigin (who is worried about your commute):

Friends, can we talk about the mass transit meltdown happening across the East for a moment? Trains and buses in 26 states are crawling at reduced speeds because (surprise!) metal expands in heat.

Underground platforms are turning into impromptu saunas, while above-ground wait times expose you to genuinely dangerous conditions. This isn’t just uncomfortable; it’s potentially hazardous.

If you can, work remotely or find alternative transportation — your body temp and weather.com’s concerned meteorologists will thank you. And remember, heat is that quiet health risk we often underestimate until we’re completely skirled (shout out to Chris DeWeese for my new Weather Word). Stay vigilant out there!

(01:19 p.m. EDT) We’re Not The Only Part Of The World Feeling The Heat

If you are itching to pack your bags and escape the heat in the U.S., you may want to think again. As the eastern half of the country swelters under the heat dome, parts of southern Europe are seeing heat build as well. Temperatures are expected to soar above average for many across the region with some locations approaching 104 degrees.

(01:11 p.m. EDT) Checking In On The Northeast

Some stats “wowing” senior meteorologist Jonathan Erdman at the moment:

JFK Airport: 102 degrees

Record for June, third hottest temp on record since 1948, hottest since July 23, 2011

Their all-time record dating to 1948 is 104 degrees on July 3, 1966

Atlantic City, NJ (Pomona/Airport): 100 degrees

First 100+ there since July 21, 2019

Norwood, MA: 100 degrees

First triple-digit reading among reliable observation sites around Boston metro

(01:00 p.m. EDT) White House Declares Power Emergency In Southeast

The Department of Energy has issued an emergency order to address potential power outages in the Southeast as the heat wave rolls on. Energy Secretary Chris Wright said the order “ensures Duke Energy Carolinas can supply its customers with consistent and reliable power throughout peak summer demand.” The order allows Duke Energy to operate certain plants at maximum output and exceed some air pollution limits.

(12:54 p.m. EDT) MLB Games Impacted By Heat Tonight

Rangers vs. Orioles (6:35 p.m. EDT)

Oriole Park at Camden Yards in Baltimore, Maryland

First Pitch Temp: 100 degrees

Extreme Heat Warning in effect

Blue Jays vs. Guardians (6:40 p.m. EDT)

Progressive Field in Cleveland, Ohio

First Pitch Temp: 85 degrees

Heat Advisory until 8 p.m.

Braves vs. Mets (7:10 p.m. EDT)

Citi Field in Queens, New York

First Pitch Temp: 95 degrees

Extreme Heat Warning until 8 p.m.

Yankees vs. Reds (7:40 p.m. EDT)

Great American Ballpark in Cincinnati, Ohio

First Pitch Temp: 90 degrees

Heat Advisory

Advertisement Rays vs. Royals (7:40 p.m. EDT)

Kauffaman Stadium in Kansas City, Missouri

First Pitch Temp: 89 degrees

Cubs vs. Cardinals (7:45 p.m. EDT)

Busch Stadium in St Louis, Missouri

First Pitch Temp: 92 degrees

Heat Advisory

(12:48 p.m. EDT) What Is A Heat Dome?

They go by names like “heat dome” or “death ridge,” and they’re no exaggeration—these massive zones of high pressure can stretch for 1,000 miles and cook the U.S. under skies that refuse to rain.

Here’s how a heat dome works: As sinking air compresses and heats up, triple-digit temperatures start to scorch the land, thunderstorms vanish, and a vicious cycle of heat and drought locks in for days (or even weeks).

These deadly weather patterns are silent killers, responsible for hundreds of U.S. deaths each year.

For a more in-depth look at heat domes, check out our explainer here.

(12:37 p.m. EDT) Extreme Heat In The Nation’s Capital

The Washington Monument will be closed Tuesday and Wednesday due to extreme heat in the Washington, D.C. area, according to the National Park Service. Heat indices in the area are expected to hover around 110 degrees.

Working before the temperature hits 100 degrees today, Jeffrey Adcock cleans the reflecting pool in Lower Senate Park. (AP Photo/J. Scott Applewhite)

(12:27 p.m. EDT) First Death From Heat Wave Confirmed In Missouri

Sadly, this heat wave has turned deadly. Authorities in St. Ann, Missouri, announced the death of a 55-year-old woman who passed away Monday after going at least three days without water or air conditioning. She has not been identified yet.

St. Ann is located in the northwestern suburbs of St. Louis, not far from Lambert International Airport. Temperatures at the airport soared to 96 degrees on Monday.

(12:18 p.m. EDT) Mental Health Tips To Navigate The Heat Wave

Feeling more anxious, tired or irritable in the heat? Well it’s not just your imagination. Studies show that extreme heat can impact your mental health by increasing cortisol – the stress hormone. But the good news is – there are ways to be mindful to help you stay cool, calm and collected. Learn how to best support your mental health during the heat wave here.

(12:08 p.m. EDT) Northeast Communities Baking With No Cooling Infrastructure

From content meteorologist Sara Tonks:

Temperatures in Casco Bay off the coast of Maine have already reached the low 90s with heat indices in the triple digits – a lot of the houses out on the islands (and many on the mainland) do not have central air conditioning because of historically comfortable temperatures for the summer. For small island communities with little infrastructure, that can mean there are very few (if any) reliable ways to cool off.

(11:45 a.m. EDT) Take Advantage Of Cooling Centers

Chicago is one of several cities reminding residents to beat the heat by taking advantage of cooling centers today. The city’s Office of Emergency Management & Communications posted a list of locations on social media.

Check sites like Facebook, X and Instagram to see if local officials have tips for your area.

(11:37 a.m. EDT) Your Vehicles Are Likely Lying To You

From senior meteorologist Jonathan Belles:

We’ve seen all your car thermometer pictures with temperatures over 100 degrees. But did you know, most of them are likely wrong? And that they aren’t even thermometers?

Car thermistors have a couple of flaws. First, they are placed behind a metal grill in a giant metal object — our cars — and, secondly, they are most likely located above black pavement or blacktops. That means that the reading on your car is likely much too warm because darker objects and metal objects both retain heat more than a grassy area.

(Getty Images)

You’ve probably noticed this as you’ve rolled down the road away from where your car was sitting. Temperatures often drop as your car moves away from the heat that your car had been baking in.

The thermometers we use have mercury that expands as temperatures rise. A thermistor, on the other hand, measures the change in electrical current as a result of heat added or removed. Both are generally accurate, but must be placed in unbiased locations to read temperatures accurately.

(11:16 a.m. EDT) The Heat Indices In These Cities Might Not Sound Real (But They Are)

Our Jon Erdman did a quick round-up of what temperatures are feeling like in a few cities, and what he found around 11 a.m. ET may make you sweat just thinking about it:

Downtown Manhattan Heliport: 110˚

Farmville, Virginia: 114˚

Clinton, North Carolina: 117˚

Edenton, North Carolina: 121˚ (Temp: 94˚, dew point: 84˚)

We have a map of current heat indices here.

(11:01 a.m. EDT) A Record High Before Lunchtime

From senior meteorologist Chris Dolce:

Providence, Rhode Island, hit 95 degrees just before 11 a.m. ET, which set a daily record. The old record was 94 degrees set on this day in 1980. Boston was just one degree away from its daily record of 95 degrees at the same time.

(10:55 a.m. EDT) Climate Change’s Role

According to Climate Central’s Climate Shift Index, the severity of this heat wave in the East has been made 3-5 times more likely due to climate change.

You can see how climate change is also affecting other areas of heat around the world in their interactive map.

(10:47 a.m. EDT) Car Goes Flying As Extreme Heat Buckles Road

(Albert Blackwell via Storyful)

A driver in Cape Girardeau, Missouri, got the worst kind of surprise as the heat broke open the road. The car went airborne as the asphalt split open and jutted into the air. The driver did not appear to be hurt, but it wasn’t the only road that buckled in the city. See the full video here.

(10:37 a.m. EDT) Seasonal Allergies Spike In Hot Weather

Don’t trust that sneeze — the heat could trigger a full-blown allergy attack thanks to hot and humid temperatures affecting pollen counts. So why does a climbing thermometer mean aggravated allergies?

Hotter temperatures mean longer growing seasons, and more growth means more pollen in the air. But it’s not just more pollen – it’s more potent, which means even the same amount of pollen can trigger a stronger allergic reaction.

Add in humidity and high heat, and you’ll have mold spores growing before you know it. If you don’t already have a dehumidifier, check out our guide on how to pick the right dehumidifier for your home.

Hot weather goes hand-in-hand with poor air quality thanks to environmental pollutants. No matter how well sealed your windows and doors are, there’s going to be just enough leakage into your home that sensitive noses will get the sniffles. If you’re looking to improve your indoor air quality, check out our beginner’s guide to air purifiers and how they work.

So how can you keep those allergies tamed during a heat wave spike? Try to stay indoors as much as possible, with pollen levels the highest in morning and early evening. Shower after you’ve been outside, since pollen is sticky, and wear the proper warm weather attire (including sun shirts, hats and sunglasses).

(10:16 a.m. EDT) New England Records Threatened

The thermometer at Boston’s Logan Airport is already reading 93 degrees as Boston and much of New England endure another punishing day of heat. Excessive Heat Warnings and Air Quality Alerts are in effect through much of the region.

Today’s extreme heat could challenge June record highs from Logan (where the previous June record is 100 degrees, first set in 1925 and matched in 1952 and 2021) to Connecticut’s Bradley airport (where the June record is also 100 degrees, set in 1952 and tied in 1964).

We’ll be keeping a close eye on that Logan Airport thermometer to see if the monthly record gets beaten.

According to senior digital meteorologist Jonathan Erdman, “our forecast for Logan Airport is now 102 degrees, which would easily top their June record, but would also be their hottest single day since July 22, 2011, almost 14 years ago.”

(10:03 a.m. EDT) Residents In The Carolinas Asked To Conserve Energy

Duke Energy is encouraging its customers in North and South Carolina to reduce the amount of energy they use during peak demand hours this evening. They’re hoping the appeal will lessen the potential of power outages. According to PowerOutage.us, thousands of customers in Pennsylvania, New York, Georgia and New Jersey are without power as temperatures surge into the 90s. Some of the outages are lingering from storms late last week and over the weekend.

(09:51 a.m. EDT) When Is It Safe To Walk My Dog?

In these soaring temperatures, it’s not always safe to have your furry friend outside. In fact, it can be downright dangerous to take your dog for a midday walk on steamy asphalt with no hydration breaks.

Luckily, the American Humane Society has offered up some helpful tips for how to keep your pet safe in these brutal conditions. Did you know about the shoulder pinch trick? Learn more about that and all kinds of other safety tips here.

(09:35 a.m. EDT) Some Will Have Relief Today

The sun rises over Manhattan on what is expected to be the hottest day of the year on June 24, 2025 in New York City. (Spencer Platt/Getty Images))

Today will be the peak of the heat wave in the Northeast. But our Jon Erdman says some will feel relief as soon as today, and in the next two days.

The post below highlights who will see the heat wave back off in the next few days.

(09:24 a.m. EDT) Flipping The Script On This Heat With Some Record Cold

While the East has been under a heat dome of high pressure, Chris Dolce points out that the Northern Rockies have seen the opposite with a southward plunge of the jet stream bringing chilly air and several record lows to the region.

Billings and Miles City, Montana, both set daily record low temperatures Monday by dropping to 41 degrees. Even colder was Casper, Wyoming, which fell to a daily record of 32 degrees, or right at the freezing mark.

(09:06 a.m. EDT) It’s That Hot Already?!

Some of the temperatures recorded just before 9 a.m. ET may make you do a double take:

Boston Logan: 90

Atlantic City: 91

Philadelphia: 91

Newark: 93

For a more complete look at just how hot it could get, check out our forecast here.

(08:57 a.m. EDT) Desert Heat + Humidity

Our senior digital meteorologist Jon Erdman notes that Monday’s high in Burlington, Vermont was 99, their hottest day in almost 24 years, and it equaled the high in both Tucson and Yuma, Arizona.

Today’s forecast high in Boston (102 degrees) is about the same as Phoenix (103 degrees). But it’s with oppressive humidity, not the “dry heat” of the Desert Southwest.

(08:32 a.m. EDT) Heat-Related Illness: The Signs To Watch For And How To React

An important reminder from our Caitlin Kaiser:

Extreme heat is the number one weather-related killer. Our bodies have a difficult time cooling down when exposed to extreme heat, leaving us vulnerable to heat-related illnesses. As we see another day of dangerous temperatures across much of the eastern half of the country, it’s important to know the symptoms of heat-related illness and how to properly respond.

(08:27 a.m. EDT) Watching Central Park

Yesterday, Manhattan’s Central Park tied a record high for the date of 96 degrees. The last time it was that hot in the park was on June 23, 1888, or 137 years ago.

With New Yorkers facing what is forecast to be their worst day of the heat wave, we’ll be watching the temperature in Central Park closely. If it breaks 100, it would be the first time the park has seen 100 degrees or higher since 2012, and the first time such high temperatures have occurred in June since 1966.

(08:08 a.m. EDT) Trains Slowed For Safety In D.C.

Washington, D.C.’s metro rail transportation is telling passengers to plan on additional travel time in the midst of this heat wave. That’s because speeds have to run slower on above-ground track sections for safety reasons as the heat can expand the rails the trains travel along.

(07:58 a.m. EDT) Rip Current Risk Today

From weather.com meteorologist Jennifer Gray: For those in the New York City area seeking relief from the heat at the beaches, there’s a moderate risk of rip currents today. Make sure you swim near a lifeguard and know how to spot a rip current.

(07:55 a.m. EDT) Amtrak Train Gets Stuck In Baltimore Tunnel Without Power

Passengers on Amtrak train heading to Boston were stranded for more than an hour on Monday without power and air conditioning in sweltering temperatures. Amtrak said a “locomotive malfunction” stopped the train in a tunnel shortly after it left Baltimore Penn Station. Passengers were eventually evacuated and put on other trains.

(07:35 a.m. EDT) All-Time Warmest Low Tie In New York City?

From weather.com senior meteorologist Chris Dolce:

New York City’s low temperature so far this morning is a balmy 81 degrees. That would tie an all-time warmest low temperature in records dating to 1869 for the month of June. That assumes they won’t slip below the current record of 81 degrees set June 26, 1952, before midnight tonight.