Current conditions at

Islip, Long Island Mac Arthur Airport (KISP)

Lat: 40.79°NLon: 73.1°WElev: 98ft.

Partly Cloudy

31°F

-1°C

Humidity 59%
Wind Speed W 14 G 25 mph
Barometer 29.92 in (1013.2 mb)
Dewpoint 18°F (-8°C)
Visibility 10.00 mi
Wind Chill21°F (-6°C)
Last update 19 Jan 2:56 pm EST
Extended Forecast for

5 Miles SSE Blue Point NY

  • Tonight

    Tonight: Partly cloudy, with a low around 19. Wind chill values between 5 and 15. Windy, with a west wind 28 to 32 mph.

    Low: 19 °F

    Partly Cloudy
    and Windy

  • Tuesday

    Tuesday: Sunny, with a high near 23. Wind chill values between 5 and 10. Windy, with a west wind 24 to 26 mph.

    High: 23 °F

    Sunny and
    Windy

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 19. Wind chill values between 5 and 10. Breezy, with a west wind 14 to 24 mph.

    Low: 19 °F

    Mostly Clear
    and Breezy
    then Mostly
    Clear

  • Wednesday

    Wednesday: Mostly sunny, with a high near 40. Wind chill values between 5 and 15. Breezy, with a west wind 10 to 15 mph becoming south 17 to 22 mph in the afternoon.

    High: 40 °F

    Sunny then
    Partly Sunny
    and Breezy

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a steady temperature around 38. Windy, with a southwest wind 22 to 26 mph.

    Low: 38 °F

    Mostly Cloudy
    and Windy

  • Thursday

    Thursday: Mostly sunny, with a high near 42. Breezy.

    High: 42 °F

    Mostly Sunny
    and Breezy

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 25. Breezy.

    Low: 25 °F

    Partly Cloudy
    and Breezy

  • Friday

    Friday: Partly sunny, with a high near 33. Breezy.

    High: 33 °F

    Partly Sunny
    and Breezy

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 11. Windy.

    Low: 11 °F

    Mostly Cloudy
    and Windy

Detailed Forecast

Tonight
Partly cloudy, with a low around 19. Wind chill values between 5 and 15. Windy, with a west wind 28 to 32 mph.
Tuesday
Sunny, with a high near 23. Wind chill values between 5 and 10. Windy, with a west wind 24 to 26 mph.
Tuesday Night
Mostly clear, with a low around 19. Wind chill values between 5 and 10. Breezy, with a west wind 14 to 24 mph.
Wednesday
Mostly sunny, with a high near 40. Wind chill values between 5 and 15. Breezy, with a west wind 10 to 15 mph becoming south 17 to 22 mph in the afternoon.
Wednesday Night
Mostly cloudy, with a steady temperature around 38. Windy, with a southwest wind 22 to 26 mph.
Thursday
Mostly sunny, with a high near 42. Breezy.
Thursday Night
Partly cloudy, with a low around 25. Breezy.
Friday
Partly sunny, with a high near 33. Breezy.
Friday Night
Mostly cloudy, with a low around 11. Windy.
Saturday
Mostly cloudy and cold, with a high near 20. Blustery.
Saturday Night
A 30 percent chance of snow. Mostly cloudy, with a low around 10. Blustery.
Sunday
A 30 percent chance of snow. Mostly cloudy and cold, with a high near 20. Blustery.
Sunday Night
A 30 percent chance of snow. Mostly cloudy, with a low around 12. Blustery.
Monday
Partly sunny, with a high near 23. Blustery.
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ABOUT THIS FORECAST

 
Point Forecast:
5 Miles SSE Blue Point NY
 40.68°N 72.99°W (Elev. 0 ft)
1:17 pm EST Jan 19, 2026
3pm EST Jan 19, 2026-6pm EST Jan 26, 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