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

34°F

1°C

Humidity 73%
Wind Speed E 13 mph
Barometer 30.10 in (1019.5 mb)
Dewpoint 26°F (-3°C)
Visibility 9.00 mi
Wind Chill25°F (-4°C)
Last update 15 Feb 9:56 pm EST
Extended Forecast for

5 Miles SSE Blue Point NY

  • Tonight

    Tonight: Snow, mainly after 1am. Low around 32. Wind chill values between 20 and 25. East wind 15 to 17 mph. Chance of precipitation is 80%. Total nighttime snow accumulation of less than one inch possible.

    Low: 32 °F

    Chance Snow
    then Snow

  • Washington's Birthday

    Washington's Birthday: Snow likely, mainly before 7am. Cloudy through mid morning, then gradual clearing, with a high near 36. Wind chill values between 20 and 30. Northeast wind 10 to 18 mph. Chance of precipitation is 60%. New snow accumulation of less than a half inch possible.

    High: 36 °F

    Snow Likely
    then Slight
    Chance Snow

  • Monday Night

    Monday Night: A slight chance of snow showers and sleet after 1am. Increasing clouds, with a low around 32. Northeast wind around 6 mph becoming light and variable. Chance of precipitation is 20%.

    Low: 32 °F

    Partly Cloudy
    then Slight
    Chance
    Snow/Sleet

  • Tuesday

    Tuesday: Partly sunny, with a high near 39. Southwest wind 6 to 11 mph.

    High: 39 °F

    Partly Sunny

  • Tuesday Night

    Tuesday Night: Increasing clouds, with a steady temperature around 36. West wind around 7 mph.

    Low: 36 °F

    Increasing
    Clouds

  • Wednesday

    Wednesday: Rain likely, mainly after noon. Cloudy, with a high near 40. Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch possible.

    High: 40 °F

    Rain Likely

  • Wednesday Night

    Wednesday Night: Rain likely before midnight. Mostly cloudy, with a low around 33. Chance of precipitation is 60%.

    Low: 33 °F

    Rain Likely
    then Mostly
    Cloudy

  • Thursday

    Thursday: Mostly cloudy, with a high near 39.

    High: 39 °F

    Mostly Cloudy

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 32.

    Low: 32 °F

    Mostly Cloudy

Detailed Forecast

Tonight
Snow, mainly after 1am. Low around 32. Wind chill values between 20 and 25. East wind 15 to 17 mph. Chance of precipitation is 80%. Total nighttime snow accumulation of less than one inch possible.
Washington's Birthday
Snow likely, mainly before 7am. Cloudy through mid morning, then gradual clearing, with a high near 36. Wind chill values between 20 and 30. Northeast wind 10 to 18 mph. Chance of precipitation is 60%. New snow accumulation of less than a half inch possible.
Monday Night
A slight chance of snow showers and sleet after 1am. Increasing clouds, with a low around 32. Northeast wind around 6 mph becoming light and variable. Chance of precipitation is 20%.
Tuesday
Partly sunny, with a high near 39. Southwest wind 6 to 11 mph.
Tuesday Night
Increasing clouds, with a steady temperature around 36. West wind around 7 mph.
Wednesday
Rain likely, mainly after noon. Cloudy, with a high near 40. Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch possible.
Wednesday Night
Rain likely before midnight. Mostly cloudy, with a low around 33. Chance of precipitation is 60%.
Thursday
Mostly cloudy, with a high near 39.
Thursday Night
Mostly cloudy, with a low around 32.
Friday
Rain likely, mainly after noon. Mostly cloudy, with a high near 41. Chance of precipitation is 60%.
Friday Night
Rain likely. Cloudy, with a low around 33. Chance of precipitation is 60%.
Saturday
A 40 percent chance of rain. Mostly cloudy, with a high near 41.
Saturday Night
A 30 percent chance of rain. Mostly cloudy, with a low around 29.
Sunday
A chance of rain and snow. Mostly cloudy, with a high near 39. Chance of precipitation is 30%.
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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:
7:19 pm EST Feb 15, 2026
Forecast Valid:
10pm EST Feb 15, 2026-6pm EST Feb 22, 2026
 
Forecast Discussion
 
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Additional Resources

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High Temperature

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Chance of Precipitation