NYC heat wave persists for another day before cooldown Thursday: Weather forecast
June 25, 2025, 11:27 a.m.
Temperatures are anticipated to reach 100 degrees Wednesday before dropping into the lower 80s Thursday and the 70s Friday.

We’re not done perspiring just yet.
New Yorkers will have to bear another day of extreme heat Wednesday before temperatures cool, according to the National Weather Service.
A heat advisory is in effect until 7 p.m., with public officials and meteorologists continuing to warn about the risks of heat-related illness, especially for older people and those with health conditions. The heat index, which accounts for humidity, is forecast to reach 100 degrees midday.
“This is dangerous, potentially deadly heat,” NYC Emergency Management said in a statement. The agency added that more than 500 New York city residents die each year from extreme heat, and most of them were in homes without air conditioning.
Officials urged New Yorkers to drink lots of water, conserve energy and check on their neighbors. A map of cooling centers across the city is available here.
Good morning! NYC is under a Heat Advisory from the National Weather Service today, June 25. This is dangerous, potentially deadly heat. In past years, extreme heat has been the city’s deadliest weather emergency. It has been linked to 500+ deaths each year, most in homes without…
— NYC Emergency Management (@nycemergencymgt) June 25, 2025
Temperatures are expected to drop to the lower 80s or upper 70s Thursday and to roughly 70 degrees Friday as a cold front moves through the metro area, National Weather Service meteorologist James Tomasini said.
That will be accompanied by clouds and chances of showers, though not “a complete washout,” he said. Rain is possible through the middle of next week.
This will be the last day of the heat wave as cooler and drier air will filter in behind a cold front Thursday and Friday. A Heat Advisory remains in effect for the whole area until 7 PM this evening. Check out the final briefing here: https://t.co/610UeEFm73 pic.twitter.com/fZRfsNPDxv
— NWS New York NY (@NWSNewYorkNY) June 25, 2025
Tomasini said Tuesday set multiple heat records in the area, including the hottest-ever temperature at JFK Airport for June — 102 degrees.
JFK tied that record Wednesday around 1 p.m., and set a new daily record as well.
Tomasini recommended that residents should "limit outdoor activity as much as you can, stay hydrated and stay in air conditioning if possible.”
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