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Current conditions at
Islip, Long Island Mac Arthur Airport (KISP)
Lat: 40.79°NLon: 73.1°WElev: 98ft.
A Few Clouds
21°F
-6°C
| Humidity | 47% |
| Wind Speed | N 7 mph |
| Barometer | 30.27 in (1025.2 mb) |
| Dewpoint | 4°F (-16°C) |
| Visibility | 10.00 mi |
| Wind Chill | 12°F (-11°C) |
| Last update | 9 Dec 6:56 am EST |
Extended Forecast for
Belle Terre NY
Today

High: 36 °F
Increasing
CloudsTonight
Low: 34 °F⇑
Breezy.
Slight Chance
Snow then
Mostly CloudyWednesday
High: 47 °F
Breezy.
Slight Chance
Rain then
Rain LikelyWednesday Night

Low: 35 °F
Chance Rain
and BreezyThursday

High: 39 °F
Mostly Sunny
and BreezyThursday Night

Low: 31 °F
Partly Cloudy
and WindyFriday
High: 37 °F
Mostly Sunny
and Breezy
then Mostly
SunnyFriday Night

Low: 33 °F
Chance Snow
Saturday
High: 40 °F
Partly Sunny
then Partly
Sunny and
Breezy
Detailed Forecast
Today
Increasing clouds, with a high near 36. Wind chill values between 15 and 25. North wind 5 to 9 mph becoming south in the afternoon.
Tonight
A 20 percent chance of snow before 10pm. Mostly cloudy, with a temperature rising to around 38 by 11pm. Breezy, with a southwest wind 14 to 20 mph.
Wednesday
Rain likely, mainly after 1pm. Mostly cloudy, with a high near 47. Breezy, with a southwest wind 18 to 25 mph. Chance of precipitation is 70%. New precipitation amounts of less than a tenth of an inch possible.
Wednesday Night
A 30 percent chance of rain before 1am. Cloudy, then gradually becoming partly cloudy, with a low around 35. Breezy, with a southwest wind 21 to 24 mph.
Thursday
Mostly sunny, with a high near 39. Breezy, with a west wind 22 to 25 mph.
Thursday Night
Partly cloudy, with a low around 31. Windy.
Friday
Mostly sunny, with a high near 37. Breezy.
Friday Night
A 30 percent chance of snow. Mostly cloudy, with a low around 33.
Saturday
Partly sunny, with a high near 40. Breezy.
Saturday Night
A 30 percent chance of snow after 1am. Mostly cloudy, with a low around 31. Breezy.
Sunday
A 30 percent chance of snow. Partly sunny, with a high near 34. Breezy.
Sunday Night
Partly cloudy, with a low around 23. Blustery.
Monday
Mostly sunny, with a high near 30.
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)
5:28 am EST Dec 9, 2025
7am EST Dec 9, 2025-6pm EST Dec 15, 2025


