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 Chill | 32°F (0°C) |
| Last update | 1 Dec 7:56 am EST |
Extended Forecast for
Belle Terre NY
Today
High: 41 °F
Sunny and
Breezy then
SunnyTonight
Low: 34 °F
Partly Cloudy
then Slight
Chance
Rain/SnowTuesday
High: 45 °F
Rain/Snow
then RainTuesday Night

Low: 33 °F
Chance
Rain/Snow and
BreezyWednesday

High: 40 °F
Sunny
Wednesday Night

Low: 36 °F
Partly Cloudy
Thursday
High: 41 °F
Partly Sunny
then Partly
Sunny and
BreezyThursday Night
Low: 23 °F
Mostly Clear
and Blustery
then Mostly
ClearFriday

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.
Additional Forecasts and Information
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ABOUT THIS FORECAST
Point Forecast:
Belle Terre NY
40.96°N 73.08°W (Elev. 3 ft)
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


