Hazardous Weather Conditions
Current conditions at
Islip, Long Island Mac Arthur Airport (KISP)
Lat: 40.79°NLon: 73.1°WElev: 98ft.
Mostly Cloudy
20°F
-7°C
| Humidity | 71% |
| Wind Speed | NE 7 mph |
| Barometer | 29.79 in (1008.9 mb) |
| Dewpoint | 12°F (-11°C) |
| Visibility | 10.00 mi |
| Wind Chill | 11°F (-12°C) |
| Last update | 6 Feb 5:56 am EST |
Extended Forecast for
Islip, Long Island Mac Arthur Airport NY
Wind Advisory February 7, 09:00am until February 8, 12:00am
Extreme Cold Warning February 7, 01:00pm until February 8, 01:00pm
Today

High: 32 °F
Mostly Cloudy
Tonight
Low: 21 °F
Chance Snow
then SnowSaturday

High: 23 °F⇓
Snow and
WindySaturday Night

Low: 4 °F
Gradual
Clearing and
WindySunday

High: 18 °F
Cold and
BlusterySunday Night

Low: 7 °F
Mostly Clear
Monday

High: 24 °F
Mostly Sunny
Monday Night

Low: 13 °F
Partly Cloudy
Tuesday

High: 31 °F
Sunny
Detailed Forecast
Today
Mostly cloudy, with a high near 32. Wind chill values between 5 and 15. North wind 5 to 7 mph becoming light and variable in the afternoon.
Tonight
Snow, mainly after 1am. Low around 21. Calm wind becoming west around 5 mph after midnight. Chance of precipitation is 80%. New 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 21 to 26 mph in the afternoon. Winds could gust as high as 49 mph. Chance of precipitation is 80%. New snow accumulation of around an inch possible.
Saturday Night
Cloudy during the early evening, then gradual clearing, with a low around 4. Wind chill values between -10 and -15. Windy, with a northwest wind 18 to 26 mph, with gusts as high as 49 mph.
Sunday
Sunny and cold, with a high near 18. Blustery, with a northwest wind 17 to 20 mph, with gusts as high as 33 mph.
Sunday Night
Mostly clear, with a low around 7.
Monday
Mostly sunny, with a high near 24.
Monday Night
Partly cloudy, with a low around 13.
Tuesday
Sunny, with a high near 31.
Tuesday Night
Mostly cloudy, with a low around 21.
Wednesday
A chance of rain and snow. Mostly cloudy, with a high near 35. Chance of precipitation is 40%.
Wednesday Night
A chance of rain and snow. Mostly cloudy, with a low around 23. Chance of precipitation is 30%.
Thursday
Mostly cloudy, with a high near 34.
Additional Forecasts and Information
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ABOUT THIS FORECAST
Point Forecast:
Islip, Long Island Mac Arthur Airport NY
40.81°N 73.11°W (Elev. 98 ft)
40.81°N 73.11°W (Elev. 98 ft)
2:05 am EST Feb 6, 2026
6am EST Feb 6, 2026-6pm EST Feb 12, 2026



