News12 New York
N12 Originals
Numbers & Links
Local
Crime
Weather
Politics
Taxing Long Island
Partly Cloudy
79°
Local
Crime
Weather
Politics
Taxing Long Island

STORM WATCH: Tracking scattered showers, storms that could produce flooding for Long Island

Parts of Long Island will stay dry most of the day. Best chance of showers and storms will be over Nassau County after 3 p.m.

Rich Hoffman

Aug 27, 2026, 11:03 AM

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...

A Flood Watch is in effect for Nassau County from noon until 11 p.m. today as we track the potential for pockets of moderate to heavy rain. Scattered showers and a few thunderstorms developing in Nassau County. Where it is not raining we will see partly sunny skies. The best chance for storms and heavier downpours will be across Nassau County and areas closer to New York City through this evening. High temperatures will reach the upper 70s and low 80s. Farther east, much of Suffolk County — especially the East End — should stay dry through about 6 p.m.

Long Island Today forecast

For tonight, we’ll keep the chance for a couple of spotty showers and perhaps a thunderstorm. Otherwise, expect plenty of clouds and a mild overnight. Low temperatures will only fall into the upper 60s to around 70 degrees.
Lunar Eclipse starts at 10:33 pm, goes to Max at 96% at 12:12 am Friday, Partial Eclipse ends at 1:51 am.

Long Island tonight forecast

Friday brings partly sunny skies with another chance for a spotty shower or thunderstorm around midday or during the late afternoon. Most of the day should be dry, with high temperatures close to 80 degrees. Friday night will be partly to mostly cloudy with a chance for another spotty shower or storm. Overnight lows will settle into the 60s.

The weekend is looking very nice. Saturday will feature a mixture of sun and clouds with highs in the upper 70s and low 80s. Saturday night stays partly cloudy and comfortable with lows in the 60s. Sunshine returns for Sunday with temperatures close to 80 degrees, and the nice weather continues into Monday with partly sunny skies and highs climbing into 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

Watching the next round of showers developing towards Thursday evening.

TROPICAL WEATHER
Check out our new Tropical Weather page
tropicalnames-dolly.png

The next named Tropical system will be Dolly. Possible tropical system within the next seven days off the coast of Africa.

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