East Hampton
News Feed
Events
Local Businesses
Classifieds
Weather

New Wave Of Blistering Temps Set To Swamp Long Island, Starting Thursday: NWS

A heat advisory will be in effect across Long Island through Friday; see just how high the temperatures will soar.

High temps are expected to blanket Long Island again on Thursday and Friday, the National Weather Service said. (Lisa Finn / Patch)

LONG ISLAND, NY — A new wave of hot weather is expected to slam Long Island Thursday into Friday, the National Weather Service said.

According to the NWS, a heat advisory will be in effect from 11 a.m. Thursday until 8 p.m. Friday across Long Island.

Subscribe

Heat index values of up to around 100 degrees are expected, the NWS said.

A heat advisory is issued when the combination of heat and humidity is expected to make it feel like it is 95 to 99 degrees for two or more consecutive days, or 100 to 104 degrees for any length of time, the NWS said.

Seniors and those with chronic health problems or mental health conditions are at an increased risk, the NWS said.

Homes without air conditioning can be much hotter than outdoor temperatures; residents should use air conditioning to stay cool at home or go to a place that has air conditioning, the NWS said.

Those who do not have home air conditioning should continue to seek out cool spaces each day as long as it remains hot, and for a few days after if homes are still hot, the NWS said.

Residents are urged to check on vulnerable friends, family members and neighbors, the NWS said.

To reduce risk during outdoor work, the Occupational Safety and Health Administration recommends scheduling frequent rest breaks in shaded or air conditioned environments, the NWS said.

Anyone overcome by heat should be moved to a cool and shaded location.

"Heat stroke is an emergency!" the NWS said. "Call 911."

Here's a look at what else Mother Nature has in store for the remainder of this week and the weekend:

Wednesday afternoon

Mostly sunny, with a high near 81 degrees. South wind around 6 mph.

Wednesday night

Mostly cloudy, with a low around 73. South wind 3 to 5 mph.

Thursday

Mostly cloudy, then gradually becoming sunny, with a high near 86. Heat index values as high as 96. Southwest wind 5 to 10 mph.

Thursday night

Mostly clear, with a low around 74. Southwest wind 5 to 8 mph.

Friday

A 20 percent chance of showers and thunderstorms after 2 p.m. Sunny, with a high near 86. Southwest wind 5 to 9 mph.

Friday night

A chance of showers between 8 p.m. and 2 a.m. Mostly cloudy, with a low around 74. Chance of precipitation is 40 percent.

Saturday

Sunny, with a high near 86.

Saturday night

Partly cloudy, with a low around 72.

Sunday

Sunny, with a high near 88.

Sunday night

Mostly clear, with a low around 71.

More from East Hampton
News | 1h
News | 1d
News | Jul 29
See more on Patch >

Sign up for free local newsletters and alerts for the
East Hampton Patch

Patch.com is the nationwide leader in hyperlocal news.
Visit Patch.com to find your town today.

©2026 Patch Media. All Rights Reserved

Do Not Sell My Personal Information