Hazardous Weather Conditions
Current conditions at
Islip, Long Island Mac Arthur Airport (KISP)
Lat: 40.79°NLon: 73.1°WElev: 98ft.
Mostly Cloudy
31°F
-1°C
| Humidity | 59% |
| Wind Speed | S 8 mph |
| Barometer | 29.61 in (1002.9 mb) |
| Dewpoint | 18°F (-8°C) |
| Visibility | 10.00 mi |
| Wind Chill | 24°F (-4°C) |
| Last update | 6 Feb 4:56 pm EST |
Extended Forecast for
2 Miles NNW Stony Brook NY
Wind Advisory February 7, 09:00am until February 8, 12:00am
Extreme Cold Warning February 7, 01:00pm until February 8, 01:00pm
Tonight
Low: 16 °F
Chance Snow
then SnowSaturday

High: 25 °F⇓
Snow and
WindySaturday Night

Low: 5 °F
Gradual
Clearing and
WindySunday
High: 19 °F
Sunny and
Blustery then
SunnySunday Night

Low: 8 °F
Mostly Clear
Monday

High: 25 °F
Increasing
CloudsMonday Night

Low: 16 °F
Partly Cloudy
Tuesday

High: 31 °F
Mostly Sunny
Tuesday Night

Low: 22 °F
Mostly Cloudy
Detailed Forecast
Tonight
Snow, mainly after 10pm. Low around 16. Calm wind becoming west around 6 mph after midnight. Chance of precipitation is 80%. Total nighttime snow accumulation of less than a half inch possible.
Saturday
Snow, mainly before 1pm. Temperature falling to around 14 by 5pm. Wind chill values between -5 and 5. Windy, with a northwest wind 13 to 18 mph increasing to 24 to 29 mph in the afternoon. Winds could gust as high as 47 mph. Chance of precipitation is 80%. New snow accumulation of less than one inch possible.
Saturday Night
Cloudy during the early evening, then gradual clearing, with a low around 5. Wind chill values between -10 and -15. Windy, with a northwest wind 21 to 29 mph, with gusts as high as 47 mph.
Sunday
Sunny and cold, with a high near 19. Wind chill values between -5 and -15. Blustery, with a northwest wind 17 to 20 mph, with gusts as high as 30 mph.
Sunday Night
Mostly clear, with a low around 8. Northwest wind 10 to 15 mph.
Monday
Increasing clouds, with a high near 25.
Monday Night
Partly cloudy, with a low around 16.
Tuesday
Mostly sunny, with a high near 31.
Tuesday Night
Mostly cloudy, with a low around 22.
Wednesday
A chance of rain and snow after 1pm. Mostly cloudy, with a high near 34. Chance of precipitation is 40%.
Wednesday Night
A chance of rain and snow. Mostly cloudy, with a low around 25. Chance of precipitation is 40%.
Thursday
A 30 percent chance of snow. Partly sunny, with a high near 33.
Thursday Night
Partly cloudy, with a low around 21.
Friday
Mostly sunny, with a high near 33.
Additional Forecasts and Information
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ABOUT THIS FORECAST
Point Forecast:
2 Miles NNW Stony Brook NY
40.92°N 73.15°W (Elev. 36 ft)
40.92°N 73.15°W (Elev. 36 ft)
3:22 pm EST Feb 6, 2026
5pm EST Feb 6, 2026-6pm EST Feb 13, 2026



