Long Island Weather — Alerts & Forecast

Official NWS alerts and forecasts for Nassau and Suffolk County. Live observations from MacArthur Airport (KISP).

Current Conditions — KISP / Islip MacArthur Airport

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Active Weather Alerts 1 active

Minor

Coastal Flood Statement

Coastal Flood Statement issued July 13 at 2:03AM EDT until July 13 at 10:00PM EDT by NWS Upton NY

▶ Full description

* WHAT...Up to one half foot of inundation above ground level expected in vulnerable areas near the waterfront and shoreline. * WHERE...Southern Queens and Southern Nassau Counties. * WHEN...This evening. * IMPACTS...Brief minor flooding of the most vulnerable locations near the waterfront and shoreline.

Area: Southern Queens; Southern Nassau Expires: Mon, Jul 13, 10:00 PM ET

Nassau County OKX 33,37

Tonight 68°F

Mostly Clear

Wind: 5 to 10 mph S
▶ Details

Mostly clear, with a low around 68. South wind 5 to 10 mph.

Monday 80°F

Sunny

Wind: 5 to 14 mph S
▶ Details

Sunny. High near 80, with temperatures falling to around 78 in the afternoon. South wind 5 to 14 mph.

Monday Night 70°F

Mostly Clear

Wind: 13 mph SW
▶ Details

Mostly clear, with a low around 70. Southwest wind around 13 mph.

Tuesday 89°F

Sunny

Wind: 10 to 16 mph SW
▶ Details

Sunny, with a high near 89. Southwest wind 10 to 16 mph.

Tuesday Night 76°F

Mostly Clear

Wind: 17 mph SW
▶ Details

Mostly clear, with a low around 76. Southwest wind around 17 mph.

Wednesday 95°F

Sunny

Wind: 15 mph W 7% precip
▶ Details

Sunny, with a high near 95.

Wednesday Night 76°F

Partly Cloudy

Wind: 8 to 15 mph NW 14% precip
▶ Details

Partly cloudy, with a low around 76.

Thursday 88°F

Mostly Sunny

Wind: 7 to 12 mph W 9% precip
▶ Details

Mostly sunny, with a high near 88.

Thursday Night 74°F

Partly Cloudy

Wind: 7 to 12 mph NW 4% precip
▶ Details

Partly cloudy, with a low around 74.

Friday 87°F

Mostly Sunny

Wind: 7 to 12 mph NW 2% precip
▶ Details

Mostly sunny, with a high near 87.

Suffolk County OKX 55,35

Forecast data unavailable.

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Data: National Weather Service (weather.gov). Nassau grid OKX/33,37 · Suffolk grid OKX/55,35 · Alert zones NYZ077–NYZ080, NYZ179. Observations from KISP (MacArthur Airport). Forecast updated each build: Jul 13, 2:06 AM ET.