News12 New York
N12 Originals
Numbers & Links
Local
Crime
Weather
Power & Politics
Rebuilding Brooklyn
Taking Action
77°
Local
Crime
Weather
Power & Politics
Rebuilding Brooklyn
Taking Action

Unsettled weather for the work week on Long Island

Tracking showers and storms as students head back to school.

Rich Hoffman

Aug 31, 2026, 12:04 PM

Updated

Share:

More Stories

Islip Information

Islip Information

Islip, New York
Updating...
🌅
Sunrise
--
Islip
🌇
Sunset
--
Islip
☀️
UV Index Today
--
Loading...
🌙
Moon Phase
--
Tonight
🍃
Air Quality
--
Loading...
Loading latest Islip information...

Mostly cloudy skies will be with us for much of today, but don't be surprised to see a few breaks of sunshine from time to time. A little more sunshine for areas East of the William Floyd Parkway. We'll also be watching for a couple of spotty showers developing during the afternoon. High temperatures will reach the upper 70s.

Long Island Today forecast

Tonight stays mostly cloudy, with a passing showers mainly after midnight. Otherwise, it will be a mild night across Long Island, with overnight lows generally in the 60s. More unsettled weather arrives Tuesday, with plenty of clouds and showers around. Thunderstorms will also develop during the afternoon, and a few could produce brief heavy downpours and gusty winds. Keep the umbrella with you Tuesday, with highs in the upper 70s and lower 80s.

Long Island tonight forecast

A couple of showers and perhaps a few thunderstorms will continue into Tuesday night, with lows falling into the 60s. Wednesday remains unsettled, with mostly cloudy skies and a few showers at times. It looks we will have more dry time then wet time. High temperatures will once again be in the upper 70s.

By Thursday, we'll see some improvement with partly sunny skies, although a few showers and thunderstorms will be possible. It will also feel a little more humid, with highs in the upper 70s and lower 80s.

The good news is that the outlook for Labor Day weekend is shaping up nicely. Friday, Saturday and Sunday look mainly sunny and dry, with comfortable temperatures in the 70s and a few spots reaching the lower 80s.

Long Island 10 day forecast

BEACH AND BOATING FORECAST

Long Island Rip Currents

Take a look at the new beach and surf forecast - plus a look at the tides

FUTURECAST

Here is a look at the hour-by-hour weather conditions projected for Long Island into the weekend.

TROPICAL WEATHER UPDATES
Check out our new Tropical Weather page

tropicalnames-dolly.png

More From News12

App StoreGoogle Play Store

info

Newsletter

Send Photos/Videos

Contact

About Us

News Team

News 12 New York

follow us

Twitter

Facebook

Instagram

more resources

Optimum Corporate

Optimum Service

Advertise on News 12

Careers

Content Removal Policy

© 2026 N12N, LLC

Privacy Policy

Terms of Service

Ad Choices