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.

Fog

37°F

3°C

Humidity 100%
Wind Speed Calm
Barometer 30.02 in (1016.5 mb)
Dewpoint 37°F (3°C)
Visibility 0.13 mi
Last update 10 Mar 6:56 am EDT
Extended Forecast for

5 Miles SSE Blue Point NY

  • Today

    Today: Areas of fog before 11am. Otherwise, mostly cloudy, with a high near 56. Southwest wind 7 to 10 mph.

    High: 56 °F

    Areas Fog
    then Mostly
    Cloudy

  • Tonight

    Tonight: Areas of fog. Otherwise, mostly cloudy, with a low around 38. South wind 8 to 10 mph.

    Low: 38 °F

    Areas Fog

  • Wednesday

    Wednesday: Areas of fog before 11am. Otherwise, mostly cloudy, with a high near 55. South wind 9 to 15 mph.

    High: 55 °F

    Areas Fog
    then Mostly
    Cloudy

  • Wednesday Night

    Wednesday Night: A chance of rain before 11pm, then a chance of showers and thunderstorms between 11pm and 2am, then a chance of rain after 2am. Mostly cloudy, with a low around 45. Breezy, with a south wind 21 to 24 mph. Chance of precipitation is 40%.

    Low: 45 °F

    Chance
    Showers and
    Breezy

  • Thursday

    Thursday: Rain likely before 5pm, then a chance of rain and snow. Cloudy, with a temperature falling to around 41 by 5pm. Breezy, with a northwest wind 21 to 23 mph. Chance of precipitation is 60%. Little or no snow accumulation expected.

    High: 46 °F⇓

    Breezy. Rain
    Likely then
    Rain/Snow
    Likely

  • Thursday Night

    Thursday Night: A chance of rain and snow before 8pm. Mostly cloudy, then gradually becoming mostly clear, with a low around 32. Chance of precipitation is 30%.

    Low: 32 °F

    Chance
    Rain/Snow
    then Mostly
    Clear

  • Friday

    Friday: Increasing clouds, with a high near 43. Breezy.

    High: 43 °F

    Mostly Sunny
    then Mostly
    Cloudy and
    Breezy

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 38. Windy.

    Low: 38 °F

    Mostly Cloudy
    and Windy

  • Saturday

    Saturday: Mostly sunny, with a high near 44. Breezy.

    High: 44 °F

    Mostly Sunny
    and Breezy
    then Mostly
    Sunny

Detailed Forecast

Today
Areas of fog before 11am. Otherwise, mostly cloudy, with a high near 56. Southwest wind 7 to 10 mph.
Tonight
Areas of fog. Otherwise, mostly cloudy, with a low around 38. South wind 8 to 10 mph.
Wednesday
Areas of fog before 11am. Otherwise, mostly cloudy, with a high near 55. South wind 9 to 15 mph.
Wednesday Night
A chance of rain before 11pm, then a chance of showers and thunderstorms between 11pm and 2am, then a chance of rain after 2am. Mostly cloudy, with a low around 45. Breezy, with a south wind 21 to 24 mph. Chance of precipitation is 40%.
Thursday
Rain likely before 5pm, then a chance of rain and snow. Cloudy, with a temperature falling to around 41 by 5pm. Breezy, with a northwest wind 21 to 23 mph. Chance of precipitation is 60%. Little or no snow accumulation expected.
Thursday Night
A chance of rain and snow before 8pm. Mostly cloudy, then gradually becoming mostly clear, with a low around 32. Chance of precipitation is 30%.
Friday
Increasing clouds, with a high near 43. Breezy.
Friday Night
Mostly cloudy, with a low around 38. Windy.
Saturday
Mostly sunny, with a high near 44. Breezy.
Saturday Night
Mostly cloudy, with a low around 37.
Sunday
Cloudy, with a high near 47. Breezy.
Sunday Night
Rain. Low around 42. Windy. Chance of precipitation is 80%.
Monday
Rain. High near 48. Windy. Chance of precipitation is 80%.
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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:
2:07 am EDT Mar 10, 2026
Forecast Valid:
8am EDT Mar 10, 2026-6pm EDT Mar 16, 2026
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation