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.

Overcast

36°F

2°C

Humidity 89%
Wind Speed NE 6 mph
Barometer 30.42 in (1030.1 mb)
Dewpoint 33°F (1°C)
Visibility 10.00 mi
Wind Chill31°F (-1°C)
Last update 6 Mar 9:56 pm EST
Extended Forecast for

5 Miles SSE Blue Point NY

  • Tonight

    Tonight: A slight chance of drizzle after 4am. Cloudy, with a low around 34. Northeast wind 5 to 9 mph becoming light east after midnight.

    Low: 34 °F

    Cloudy then
    Slight Chance
    Drizzle

  • Saturday

    Saturday: Cloudy, with a high near 46. Southeast wind 5 to 11 mph becoming south in the morning.

    High: 46 °F

    Cloudy

  • Saturday Night

    Saturday Night: A chance of showers and thunderstorms. Areas of dense fog after 1am. Otherwise, cloudy, with a temperature rising to around 46 by 2am. Breezy, with a southwest wind 15 to 22 mph. Chance of precipitation is 40%.

    Low: 43 °F⇑

    Chance
    Showers and
    Areas Dense
    Fog

  • Sunday

    Sunday: A 40 percent chance of showers, mainly before 1pm. Areas of fog before 1pm. Otherwise, mostly cloudy, with a high near 51. Southwest wind 13 to 18 mph.

    High: 51 °F

    Chance
    Showers and
    Areas Fog

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 40. West wind 8 to 10 mph.

    Low: 40 °F

    Partly Cloudy

  • Monday

    Monday: Sunny, with a high near 49.

    High: 49 °F

    Sunny

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 41.

    Low: 41 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: Mostly cloudy, with a high near 49.

    High: 49 °F

    Mostly Cloudy

  • Tuesday Night

    Tuesday Night: A 30 percent chance of rain after 1am. Mostly cloudy, with a low around 41.

    Low: 41 °F

    Mostly Cloudy
    then Chance
    Rain

Detailed Forecast

Tonight
A slight chance of drizzle after 4am. Cloudy, with a low around 34. Northeast wind 5 to 9 mph becoming light east after midnight.
Saturday
Cloudy, with a high near 46. Southeast wind 5 to 11 mph becoming south in the morning.
Saturday Night
A chance of showers and thunderstorms. Areas of dense fog after 1am. Otherwise, cloudy, with a temperature rising to around 46 by 2am. Breezy, with a southwest wind 15 to 22 mph. Chance of precipitation is 40%.
Sunday
A 40 percent chance of showers, mainly before 1pm. Areas of fog before 1pm. Otherwise, mostly cloudy, with a high near 51. Southwest wind 13 to 18 mph.
Sunday Night
Partly cloudy, with a low around 40. West wind 8 to 10 mph.
Monday
Sunny, with a high near 49.
Monday Night
Mostly cloudy, with a low around 41.
Tuesday
Mostly cloudy, with a high near 49.
Tuesday Night
A 30 percent chance of rain after 1am. Mostly cloudy, with a low around 41.
Wednesday
A 50 percent chance of rain. Cloudy, with a high near 49. Breezy.
Wednesday Night
A 50 percent chance of rain. Cloudy, with a low around 40. Breezy.
Thursday
A 40 percent chance of rain. Mostly cloudy, with a high near 45. Breezy.
Thursday Night
Mostly cloudy, with a low around 33.
Friday
Mostly cloudy, with a high near 43.
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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:
12:51 pm EST Mar 6, 2026
Forecast Valid:
10pm EST Mar 6, 2026-6pm EDT Mar 13, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

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