Current conditions at

Islip, Long Island Mac Arthur Airport (KISP)

Lat: 40.79°NLon: 73.1°WElev: 98ft.

Mostly Cloudy

40°F

4°C

Humidity 60%
Wind Speed NW 14 G 22 mph
Barometer 30.24 in (1024.0 mb)
Dewpoint 27°F (-3°C)
Visibility 10.00 mi
Wind Chill32°F (0°C)
Last update 1 Dec 7:56 am EST
Extended Forecast for

Belle Terre NY

  • Today

    Today: Sunny, with a high near 41. Breezy, with a northwest wind 10 to 20 mph.

    High: 41 °F

    Sunny and
    Breezy then
    Sunny

  • Tonight

    Tonight: A slight chance of rain and snow after 4am.  Increasing clouds, with a low around 34. North wind 5 to 9 mph becoming east after midnight.  Chance of precipitation is 20%.

    Low: 34 °F

    Partly Cloudy
    then Slight
    Chance
    Rain/Snow

  • Tuesday

    Tuesday: A slight chance of rain and snow before 7am, then rain.  High near 45. East wind 8 to 17 mph becoming north in the afternoon.  Chance of precipitation is 100%. Little or no snow accumulation expected.

    High: 45 °F

    Rain/Snow
    then Rain

  • Tuesday Night

    Tuesday Night: A chance of rain, mixing with snow after 10pm, then gradually ending.  Cloudy, then gradually becoming partly cloudy, with a low around 33. Wind chill values between 25 and 30. Breezy, with a north wind 21 to 24 mph.  Chance of precipitation is 50%.

    Low: 33 °F

    Chance
    Rain/Snow and
    Breezy

  • Wednesday

    Wednesday: Sunny, with a high near 40. Northwest wind 8 to 17 mph.

    High: 40 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 36.

    Low: 36 °F

    Partly Cloudy

  • Thursday

    Thursday: Partly sunny, with a high near 41. Breezy.

    High: 41 °F

    Partly Sunny
    then Partly
    Sunny and
    Breezy

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 23. Blustery.

    Low: 23 °F

    Mostly Clear
    and Blustery
    then Mostly
    Clear

  • Friday

    Friday: Mostly sunny, with a high near 36.

    High: 36 °F

    Mostly Sunny

Detailed Forecast

Today
Sunny, with a high near 41. Breezy, with a northwest wind 10 to 20 mph.
Tonight
A slight chance of rain and snow after 4am. Increasing clouds, with a low around 34. North wind 5 to 9 mph becoming east after midnight. Chance of precipitation is 20%.
Tuesday
A slight chance of rain and snow before 7am, then rain. High near 45. East wind 8 to 17 mph becoming north in the afternoon. Chance of precipitation is 100%. Little or no snow accumulation expected.
Tuesday Night
A chance of rain, mixing with snow after 10pm, then gradually ending. Cloudy, then gradually becoming partly cloudy, with a low around 33. Wind chill values between 25 and 30. Breezy, with a north wind 21 to 24 mph. Chance of precipitation is 50%.
Wednesday
Sunny, with a high near 40. Northwest wind 8 to 17 mph.
Wednesday Night
Partly cloudy, with a low around 36.
Thursday
Partly sunny, with a high near 41. Breezy.
Thursday Night
Mostly clear, with a low around 23. Blustery.
Friday
Mostly sunny, with a high near 36.
Friday Night
A chance of snow after 10pm, mixing with rain after 4am. Mostly cloudy, with a low around 32. Chance of precipitation is 50%.
Saturday
A 50 percent chance of rain. Mostly cloudy, with a high near 40.
Saturday Night
A 30 percent chance of rain. Mostly cloudy, with a low around 35.
Sunday
Partly sunny, with a high near 41.
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ABOUT THIS FORECAST

 
Point Forecast:
Belle Terre NY
 40.96°N 73.08°W (Elev. 3 ft)
1:19 am EST Dec 1, 2025
8am EST Dec 1, 2025-6pm EST Dec 7, 2025
 
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Additional Resources

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