Current conditions at

Islip, Long Island Mac Arthur Airport (KISP)

Lat: 40.79°NLon: 73.1°WElev: 98ft.

A Few Clouds

41°F

5°C

Humidity 70%
Wind Speed S 10 mph
Barometer 30.62 in (1037.0 mb)
Dewpoint 32°F (0°C)
Visibility 10.00 mi
Wind Chill35°F (2°C)
Last update 9 Apr 8:56 am EDT
Extended Forecast for

5 Miles SSE Blue Point NY

  • Today

    Today: Mostly sunny, with a high near 45. South wind 8 to 13 mph.

    High: 45 °F

    Mostly Sunny

  • Tonight

    Tonight: Patchy fog after 3am.  Otherwise, partly cloudy, with a low around 40. South wind 6 to 11 mph becoming light southwest  after midnight.

    Low: 40 °F

    Mostly Clear
    then Patchy
    Fog

  • Friday

    Friday: Patchy fog before 7am.  Otherwise, partly sunny, with a high near 51. Southwest wind 6 to 14 mph.

    High: 51 °F

    Patchy Fog
    then Partly
    Sunny

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 42. South wind 14 to 17 mph.

    Low: 42 °F

    Mostly Cloudy

  • Saturday

    Saturday: Partly sunny, then gradually becoming sunny, with a high near 53. Northwest wind 9 to 14 mph.

    High: 53 °F

    Becoming
    Sunny

  • Saturday Night

    Saturday Night: Clear, with a low around 43.

    Low: 43 °F

    Clear

  • Sunday

    Sunday: Mostly sunny, with a high near 49.

    High: 49 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 45.

    Low: 45 °F

    Mostly Cloudy

  • Monday

    Monday: Mostly cloudy, with a high near 56. Breezy.

    High: 56 °F

    Mostly Cloudy
    and Breezy

Detailed Forecast

Today
Mostly sunny, with a high near 45. South wind 8 to 13 mph.
Tonight
Patchy fog after 3am. Otherwise, partly cloudy, with a low around 40. South wind 6 to 11 mph becoming light southwest after midnight.
Friday
Patchy fog before 7am. Otherwise, partly sunny, with a high near 51. Southwest wind 6 to 14 mph.
Friday Night
Mostly cloudy, with a low around 42. South wind 14 to 17 mph.
Saturday
Partly sunny, then gradually becoming sunny, with a high near 53. Northwest wind 9 to 14 mph.
Saturday Night
Clear, with a low around 43.
Sunday
Mostly sunny, with a high near 49.
Sunday Night
Mostly cloudy, with a low around 45.
Monday
Mostly cloudy, with a high near 56. Breezy.
Monday Night
Mostly cloudy, with a low around 52. Windy.
Tuesday
Partly sunny, with a high near 60. Breezy.
Tuesday Night
Mostly cloudy, with a low around 53. Breezy.
Wednesday
Partly sunny, with a high near 60.
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ABOUT THIS FORECAST

 
Point Forecast:
5 Miles SSE Blue Point NY
 40.68°N 72.99°W (Elev. 0 ft)
6:37 am EDT Apr 9, 2026
9am EDT Apr 9, 2026-6pm EDT Apr 15, 2026
 
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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