Current conditions at
Islip, Long Island Mac Arthur Airport (KISP)
Lat: 40.79°NLon: 73.1°WElev: 98ft.
Fair
22°F
-6°C
| Humidity | 40% |
| Wind Speed | N 9 mph |
| Barometer | 30.35 in (1027.6 mb) |
| Dewpoint | 1°F (-17°C) |
| Visibility | 10.00 mi |
| Wind Chill | 12°F (-11°C) |
| Last update | 5 Dec 3:56 am EST |
Extended Forecast for
Belle Terre NY
Today

High: 35 °F
Increasing
CloudsTonight

Low: 32 °F
Chance Wintry
MixSaturday
High: 42 °F
Slight Chance
Wintry Mix
then Mostly
CloudySaturday Night

Low: 30 °F
Partly Cloudy
Sunday

High: 40 °F
Increasing
CloudsSunday Night

Low: 25 °F
Chance
Rain/SnowMonday

High: 33 °F
Mostly Sunny
and BreezyMonday Night

Low: 23 °F
Mostly Clear
Tuesday

High: 39 °F
Partly Sunny
Detailed Forecast
Today
Increasing clouds, with a high near 35. Wind chill values between 15 and 25. Northeast wind around 6 mph becoming southeast in the morning.
Tonight
A slight chance of snow between 10pm and 11pm, then a chance of snow and freezing rain. Mostly cloudy, with a steady temperature around 32. Light and variable wind becoming north around 5 mph after midnight. Chance of precipitation is 30%.
Saturday
A slight chance of rain, snow, and freezing rain before 9am, then a slight chance of rain between 9am and 10am. Mostly cloudy, with a high near 42. North wind 5 to 10 mph becoming southwest in the afternoon. Chance of precipitation is 20%.
Saturday Night
Partly cloudy, with a low around 30. Wind chill values between 20 and 25. Northwest wind 10 to 13 mph.
Sunday
Increasing clouds, with a high near 40. North wind 5 to 8 mph becoming southeast in the afternoon.
Sunday Night
A chance of rain and snow showers before 1am. Mostly cloudy, with a low around 25. Chance of precipitation is 30%.
Monday
Mostly sunny, with a high near 33. Breezy.
Monday Night
Mostly clear, with a low around 23.
Tuesday
Partly sunny, with a high near 39.
Tuesday Night
Mostly cloudy, with a low around 35.
Wednesday
A 30 percent chance of rain. Mostly cloudy, with a high near 48.
Wednesday Night
Rain likely. Cloudy, with a low around 41. Chance of precipitation is 60%.
Thursday
A 40 percent chance of rain. Mostly cloudy, with a high near 45. Breezy.
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)
3:30 am EST Dec 5, 2025
4am EST Dec 5, 2025-6pm EST Dec 11, 2025


