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

Moderate

Rip Current Statement

Rip Current Statement issued June 21 at 9:44PM EDT until June 22 at 9:00PM EDT by NWS Upton NY

▶ Full description

* WHAT...Dangerous rip currents expected. * WHERE...The ocean beaches of New York City, Nassau, and western Suffolk Counties. * WHEN...From late Monday afternoon into Monday evening. * IMPACTS...Life threatening rip currents are likely for all people entering the surf zone late in the day. Anyone at the beaches after about 5 PM should stay out of the surf as lifeguards go off duty. Rip currents can sweep even the best swimmers away from shore into deeper water. * ADDITIONAL DETAILS...The rip current risk will be moderate for much of the day on Monday, then increase to high late in the day as onshore winds increase to 20 to 25 mph and surf heights build to 3 to 4 feet. The high risk may continue into part of Tuesday morning.

Area: Kings (Brooklyn); Southwest Suffolk; Southern Queens; Southern Nassau Expires: Mon, Jun 22, 6:00 AM ET

Nassau County OKX 33,37

Tonight 67°F

Partly Cloudy

Wind: 5 to 9 mph NE
▶ Details

Partly cloudy, with a low around 67. Northeast wind 5 to 9 mph.

Monday 75°F

Showers And Thunderstorms Likely

Wind: 5 to 15 mph SE 73% precip
▶ Details

A chance of rain showers between 8am and 2pm, then showers and thunderstorms likely. Mostly cloudy. High near 75, with temperatures falling to around 71 in the afternoon. Southeast wind 5 to 15 mph. Chance of precipitation is 70%. New rainfall amounts between a quarter and half of an inch possible.

Monday Night 67°F

Showers And Thunderstorms

Wind: 8 to 15 mph S 94% precip
▶ Details

Showers and thunderstorms. Cloudy. Low around 67, with temperatures rising to around 70 overnight. South wind 8 to 15 mph, with gusts as high as 29 mph. Chance of precipitation is 90%. New rainfall amounts between three quarters and one inch possible.

Tuesday 78°F

Chance Rain Showers

Wind: 9 mph NW 50% precip
▶ Details

A chance of rain showers before 2pm. Partly sunny. High near 78, with temperatures falling to around 76 in the afternoon. Northwest wind around 9 mph. Chance of precipitation is 50%. New rainfall amounts between a tenth and quarter of an inch possible.

Tuesday Night 65°F

Partly Cloudy

Wind: 10 mph NW 13% precip
▶ Details

Partly cloudy, with a low around 65. Northwest wind around 10 mph.

Wednesday 81°F

Sunny

Wind: 5 to 8 mph W
▶ Details

Sunny, with a high near 81.

Wednesday Night 68°F

Mostly Clear

Wind: 3 to 8 mph W
▶ Details

Mostly clear, with a low around 68.

Thursday 81°F

Sunny then Slight Chance Rain Showers

Wind: 2 to 15 mph S 15% precip
▶ Details

A slight chance of rain showers after 2pm. Sunny, with a high near 81.

Thursday Night 69°F

Slight Chance Showers And Thunderstorms

Wind: 6 to 15 mph S 49% precip
▶ Details

A slight chance of rain showers before 8pm, then a slight chance of showers and thunderstorms between 8pm and 2am, then a chance of showers and thunderstorms. Partly cloudy, with a low around 69. Chance of precipitation is 50%.

Friday 82°F

Chance Showers And Thunderstorms

Wind: 6 to 12 mph S 52% precip
▶ Details

A chance of showers and thunderstorms before 2pm, then a chance of showers and thunderstorms. Partly sunny, with a high near 82. Chance of precipitation is 50%.

Suffolk County OKX 55,35

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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: Jun 21, 10:37 PM ET.