Long Island Weather — Alerts & Forecast

Official National Weather Service alerts and forecasts for Nassau and Suffolk County.

Last updated at build: May 6, 8:01 AM ET

Active Weather Alerts

No active weather alerts for Nassau or Suffolk County.

Nassau County Forecast

Today 67°F

Rain Showers

Wind: 16 to 20 mph S

Tonight 52°F

Rain Showers Likely

Wind: 15 mph W

Thursday 63°F

Slight Chance Rain Showers then Mostly Sunny

Wind: 6 to 13 mph NW

Thursday Night 49°F

Partly Cloudy

Wind: 9 mph NW

Friday 63°F

Sunny

Wind: 8 to 17 mph W

Friday Night 52°F

Partly Cloudy

Wind: 7 to 16 mph SW

Suffolk County Forecast

Forecast data unavailable.

Data source: National Weather Service (weather.gov). Gridpoint forecasts for Nassau County (OKX 33,37) and Suffolk County (OKX 55,35). Updated each build.