National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Hazardous Weather Conditions

Current conditions at

Islip, Long Island Mac Arthur Airport (KISP)

Lat: 40.79°NLon: 73.1°WElev: 98ft.

Mostly Cloudy

24°F

-4°C

Humidity 71%
Wind Speed Calm
Barometer 30.12 in (1020.1 mb)
Dewpoint 16°F (-9°C)
Visibility 10.00 mi
Last update 13 Feb 11:56 pm EST
Extended Forecast for

5 Miles SSE Blue Point NY

  • Overnight

    Overnight: A 20 percent chance of snow showers after 4am. Mostly cloudy, with a low around 28. Wind chill values between 20 and 25. West wind around 11 mph.

    Low: 28 °F

    Slight Chance
    Snow Showers

  • Saturday

    Saturday: Mostly sunny, with a high near 38. Wind chill values between 20 and 30. West wind 13 to 17 mph.

    High: 38 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 28. Wind chill values between 20 and 25. West wind 8 to 10 mph.

    Low: 28 °F

    Mostly Clear

  • Sunday

    Sunday: Partly sunny, with a high near 35. Wind chill values between 20 and 30. North wind around 8 mph becoming east in the afternoon.

    High: 35 °F

    Partly Sunny

  • Sunday Night

    Sunday Night: A 30 percent chance of snow. Mostly cloudy, with a low around 31. Southeast wind around 8 mph.

    Low: 31 °F

    Chance Snow

  • Washington's Birthday

    Washington's Birthday: Mostly cloudy, with a high near 39.

    High: 39 °F

    Mostly Cloudy

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 34.

    Low: 34 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: Mostly cloudy, with a high near 41.

    High: 41 °F

    Mostly Cloudy

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 35.

    Low: 35 °F

    Mostly Cloudy

Detailed Forecast

Overnight
A 20 percent chance of snow showers after 4am. Mostly cloudy, with a low around 28. Wind chill values between 20 and 25. West wind around 11 mph.
Saturday
Mostly sunny, with a high near 38. Wind chill values between 20 and 30. West wind 13 to 17 mph.
Saturday Night
Mostly clear, with a low around 28. Wind chill values between 20 and 25. West wind 8 to 10 mph.
Sunday
Partly sunny, with a high near 35. Wind chill values between 20 and 30. North wind around 8 mph becoming east in the afternoon.
Sunday Night
A 30 percent chance of snow. Mostly cloudy, with a low around 31. Southeast wind around 8 mph.
Washington's Birthday
Mostly cloudy, with a high near 39.
Monday Night
Mostly cloudy, with a low around 34.
Tuesday
Mostly cloudy, with a high near 41.
Tuesday Night
Mostly cloudy, with a low around 35.
Wednesday
A 40 percent chance of rain. Cloudy, with a high near 41.
Wednesday Night
Rain likely. Mostly cloudy, with a low around 35. Chance of precipitation is 60%.
Thursday
A chance of rain and snow. Mostly cloudy, with a high near 42. Chance of precipitation is 40%.
Thursday Night
A 40 percent chance of rain. Mostly cloudy, with a low around 32.
Friday
A chance of rain and snow. Mostly cloudy, with a high near 38. Chance of precipitation is 50%.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
5 Miles SSE Blue Point NY
 40.68°N 72.99°W (Elev. 0 ft)
Last Update:
1:16 pm EST Feb 13, 2026
Forecast Valid:
12am EST Feb 14, 2026-6pm EST Feb 20, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

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Hourly Weather Forecast

National Digital Forecast Database

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation