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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Road Impact: High — Heavy Rain
Heavy rain expected. Wet roads and reduced visibility — increase following distance.
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Active Weather Alerts
No active weather alerts for Nassau or Suffolk County.
Nassau County OKX 33,37
Rain Showers
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Rain showers before 2pm, then showers and thunderstorms. Mostly cloudy, with a high near 75. South wind around 15 mph. Chance of precipitation is 90%. New rainfall amounts between a tenth and quarter of an inch possible.
Showers And Thunderstorms
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Showers and thunderstorms. Cloudy. Low around 50, with temperatures rising to around 56 overnight. West wind 14 to 22 mph. Chance of precipitation is 90%. New rainfall amounts between a tenth and quarter of an inch possible.
Chance Rain Showers then Mostly Sunny
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A chance of rain showers before 8am. Mostly sunny. High near 53, with temperatures falling to around 51 in the afternoon. Northwest wind around 21 mph. Chance of precipitation is 30%.
Mostly Clear
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Mostly clear, with a low around 42. North wind 14 to 18 mph.
Sunny
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Sunny, with a high near 55. Northeast wind 7 to 13 mph.
Mostly Clear
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Mostly clear, with a low around 46.
Mostly Sunny
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Mostly sunny, with a high near 59.
Partly Cloudy
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Partly cloudy, with a low around 50.
Mostly Sunny
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Mostly sunny, with a high near 64.
Partly Cloudy
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Partly cloudy, with a low around 53.
Suffolk County OKX 55,35
Forecast data unavailable.
Live Radar — OKX New York
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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: Oct 16, 10:32 AM ET.