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

Islip, Long Island Mac Arthur Airport (KISP)

Lat: 40.79°NLon: 73.1°WElev: 98ft.

Light Rain Fog/Mist

36°F

2°C

Humidity 97%
Wind Speed N 3 mph
Barometer 29.83 in (1010.2 mb)
Dewpoint 35°F (2°C)
Visibility 2.00 mi
Last update 18 Feb 8:56 pm EST
Extended Forecast for

5 Miles SSE Blue Point NY

  • Tonight

    Tonight: Rain likely, mainly before 10pm. Patchy fog before 4am. Otherwise, cloudy, with a low around 33. Northeast wind 7 to 13 mph. Chance of precipitation is 70%.

    Low: 33 °F

    Rain Likely
    and Patchy
    Fog then
    Chance Rain
    and Areas Fog

  • Thursday

    Thursday: Mostly cloudy, with a high near 38. Wind chill values between 25 and 30. East wind 10 to 13 mph.

    High: 38 °F

    Mostly Cloudy

  • Thursday Night

    Thursday Night: A chance of rain and snow before 10pm, then rain likely. Cloudy, with a low around 36. East wind 10 to 14 mph. Chance of precipitation is 60%. Little or no snow accumulation expected.

    Low: 36 °F

    Chance
    Rain/Snow
    then Rain
    Likely

  • Friday

    Friday: Rain. High near 39. East wind 16 to 18 mph. Chance of precipitation is 90%. New precipitation amounts between a quarter and half of an inch possible.

    High: 39 °F

    Rain

  • Friday Night

    Friday Night: Rain likely, mainly before 7pm. Mostly cloudy, with a low around 34. North wind 10 to 15 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 34 °F

    Rain Likely

  • Saturday

    Saturday: A 30 percent chance of rain after 1pm. Mostly cloudy, with a high near 40.

    High: 40 °F

    Partly Sunny
    then Chance
    Rain

  • Saturday Night

    Saturday Night: A chance of rain before 1am, then a chance of rain and snow. Mostly cloudy, with a low around 32. Chance of precipitation is 30%.

    Low: 32 °F

    Chance Rain
    then Chance
    Rain/Snow

  • Sunday

    Sunday: A chance of rain and snow before 1pm, then a chance of snow. Cloudy, with a high near 36. Breezy. Chance of precipitation is 40%.

    High: 36 °F

    Chance
    Rain/Snow and
    Breezy

  • Sunday Night

    Sunday Night: Snow likely, mainly before 1am. Cloudy, with a low around 30. Windy. Chance of precipitation is 60%.

    Low: 30 °F

    Snow Likely
    and Windy

Detailed Forecast

Tonight
Rain likely, mainly before 10pm. Patchy fog before 4am. Otherwise, cloudy, with a low around 33. Northeast wind 7 to 13 mph. Chance of precipitation is 70%.
Thursday
Mostly cloudy, with a high near 38. Wind chill values between 25 and 30. East wind 10 to 13 mph.
Thursday Night
A chance of rain and snow before 10pm, then rain likely. Cloudy, with a low around 36. East wind 10 to 14 mph. Chance of precipitation is 60%. Little or no snow accumulation expected.
Friday
Rain. High near 39. East wind 16 to 18 mph. Chance of precipitation is 90%. New precipitation amounts between a quarter and half of an inch possible.
Friday Night
Rain likely, mainly before 7pm. Mostly cloudy, with a low around 34. North wind 10 to 15 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.
Saturday
A 30 percent chance of rain after 1pm. Mostly cloudy, with a high near 40.
Saturday Night
A chance of rain before 1am, then a chance of rain and snow. Mostly cloudy, with a low around 32. Chance of precipitation is 30%.
Sunday
A chance of rain and snow before 1pm, then a chance of snow. Cloudy, with a high near 36. Breezy. Chance of precipitation is 40%.
Sunday Night
Snow likely, mainly before 1am. Cloudy, with a low around 30. Windy. Chance of precipitation is 60%.
Monday
A 40 percent chance of snow before 1pm. Mostly cloudy, with a high near 36. Windy.
Monday Night
Mostly cloudy, with a low around 27. Blustery.
Tuesday
Sunny, with a high near 35. Breezy.
Tuesday Night
Partly cloudy, with a low around 27.
Wednesday
Partly sunny, with a high near 40.
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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:
12:48 pm EST Feb 18, 2026
Forecast Valid:
9pm EST Feb 18, 2026-6pm EST Feb 25, 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