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.

Light Snow

14°F

-10°C

Humidity 80%
Wind Speed NE 14 mph
Barometer 30.47 in (1032.0 mb)
Dewpoint 9°F (-13°C)
Visibility 0.75 mi
Wind Chill-1°F (-18°C)
Last update 25 Jan 9:56 am EST
Extended Forecast for

5 Miles SSE Blue Point NY

Winter Storm Warning until January 26, 01:00pm
Click here for hazard details and duration
Winter Storm Warning
  •  
    Winter Storm Warning until January 26, 01:00pm

    NOW until 1:00pm Mon

    Winter Storm Warning

  • Today

    High: 35 °F

    Heavy Snow
    and Breezy
    then
    Snow/Sleet
    and Windy

  • Tonight

    Tonight: Rain and sleet before 1am, then a chance of freezing rain and sleet. Steady temperature around 32. Wind chill values between 15 and 20. Windy, with an east wind 27 to 32 mph decreasing to 16 to 21 mph after midnight. Chance of precipitation is 100%. Little or no ice accumulation expected. New sleet accumulation of less than one inch possible.

    Low: 32 °F

    Rain/Sleet
    and Windy
    then Wintry
    Mix Likely
    and Breezy

  • Monday

    Monday: A chance of snow, freezing rain, and sleet before 7am, then a chance of snow and freezing rain between 7am and 4pm, then a slight chance of snow after 4pm. Cloudy, with a temperature falling to around 27 by 5pm. Wind chill values between 15 and 20. Breezy, with a northeast wind 13 to 22 mph becoming northwest in the afternoon. Chance of precipitation is 40%.

    High: 32 °F⇓

    Chance Wintry
    Mix and
    Breezy

  • Monday Night

    Monday Night: Partly cloudy, with a low around 17. Wind chill values between zero and 10. Windy, with a northwest wind 24 to 26 mph, with gusts as high as 36 mph.

    Low: 17 °F

    Partly Cloudy
    and Windy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 23. Breezy, with a west wind 18 to 23 mph.

    High: 23 °F

    Mostly Sunny
    and Breezy

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 15. Breezy.

    Low: 15 °F

    Partly Cloudy
    and Breezy

  • Wednesday

    Wednesday: Mostly sunny, with a high near 23.

    High: 23 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 17.

    Low: 17 °F

    Mostly Cloudy

Detailed Forecast

Today
Snow before 4pm, then snow and sleet. The snow could be heavy at times. High near 35. Wind chill values between 5 and 15. Windy, with a northeast wind 18 to 23 mph increasing to 27 to 32 mph in the afternoon. Chance of precipitation is 100%. Total daytime snow and sleet accumulation of 5 to 9 inches possible.
Tonight
Rain and sleet before 1am, then a chance of freezing rain and sleet. Steady temperature around 32. Wind chill values between 15 and 20. Windy, with an east wind 27 to 32 mph decreasing to 16 to 21 mph after midnight. Chance of precipitation is 100%. Little or no ice accumulation expected. New sleet accumulation of less than one inch possible.
Monday
A chance of snow, freezing rain, and sleet before 7am, then a chance of snow and freezing rain between 7am and 4pm, then a slight chance of snow after 4pm. Cloudy, with a temperature falling to around 27 by 5pm. Wind chill values between 15 and 20. Breezy, with a northeast wind 13 to 22 mph becoming northwest in the afternoon. Chance of precipitation is 40%.
Monday Night
Partly cloudy, with a low around 17. Wind chill values between zero and 10. Windy, with a northwest wind 24 to 26 mph, with gusts as high as 36 mph.
Tuesday
Mostly sunny, with a high near 23. Breezy, with a west wind 18 to 23 mph.
Tuesday Night
Partly cloudy, with a low around 15. Breezy.
Wednesday
Mostly sunny, with a high near 23.
Wednesday Night
Mostly cloudy, with a low around 17.
Thursday
Partly sunny, with a high near 23. Blustery.
Thursday Night
Partly cloudy, with a low around 13. Blustery.
Friday
Mostly sunny, with a high near 23. Blustery.
Friday Night
Partly cloudy, with a low around 17. Blustery.
Saturday
Mostly sunny, with a high near 27.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
5 Miles SSE Blue Point NY
 40.68°N 72.99°W (Elev. 0 ft)
Last Update:
5:25 am EST Jan 25, 2026
Forecast Valid:
10am EST Jan 25, 2026-6pm EST Jan 31, 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