Hazardous Weather Conditions
Current conditions at
Islip, Long Island Mac Arthur Airport (KISP)
Lat: 40.79°NLon: 73.1°WElev: 98ft.
Snow Freezing Fog
12°F
-11°C
| Humidity | 84% |
| Wind Speed | NE 12 mph |
| Barometer | 30.52 in (1033.7 mb) |
| Dewpoint | 8°F (-13°C) |
| Visibility | 0.50 mi |
| Wind Chill | -2°F (-19°C) |
| Last update | 25 Jan 8:56 am EST |
Extended Forecast for
Islip NY
Winter Storm Warning until January 26, 01:00pm
NOW until 1:00pm Mon
Winter Storm Warning
Today
High: 34 °F
Heavy Snow
then
Snow/SleetTonight
Low: 30 °F
Wintry Mix
and Blustery
then Wintry
Mix LikelyMonday
High: 30 °F⇓
Chance Wintry
MixMonday Night
Low: 13 °F
Partly Cloudy
Tuesday
High: 22 °F
Mostly Sunny
Tuesday Night
Low: 10 °F
Mostly Clear
Wednesday
High: 24 °F
Mostly Sunny
Wednesday Night
Low: 13 °F
Mostly Cloudy
Detailed Forecast
Today
Snow before 4pm, then snow and sleet. The snow could be heavy at times. High near 34. Wind chill values between 5 and 15. Northeast wind 9 to 18 mph, with gusts as high as 30 mph. Chance of precipitation is 100%. Total daytime snow and sleet accumulation of 5 to 9 inches possible.
Tonight
Sleet, possibly mixed with freezing rain, mainly before 4am. Steady temperature around 30. Wind chill values between 15 and 20. Blustery, with a northeast wind 16 to 21 mph decreasing to 9 to 14 mph after midnight. Winds could gust as high as 33 mph. Chance of precipitation is 100%. Little or no ice accumulation expected. New sleet accumulation of 1 to 2 inches possible.
Monday
A chance of snow, freezing rain, and sleet before 7am, then a chance of snow and freezing rain between 7am and 1pm. Cloudy, with a temperature rising to near 30 by 10am, then falling to around 26 during the remainder of the day. Wind chill values between 15 and 20. North wind 6 to 13 mph becoming northwest in the afternoon. Chance of precipitation is 40%.
Monday Night
Partly cloudy, with a low around 13. Wind chill values between zero and 10. West wind around 16 mph, with gusts as high as 30 mph.
Tuesday
Mostly sunny, with a high near 22. West wind 10 to 13 mph, with gusts as high as 25 mph.
Tuesday Night
Mostly clear, with a low around 10.
Wednesday
Mostly sunny, with a high near 24.
Wednesday Night
Mostly cloudy, with a low around 13.
Thursday
Partly sunny, with a high near 23.
Thursday Night
Partly cloudy, with a low around 8.
Friday
Mostly sunny, with a high near 23.
Friday Night
Partly cloudy, with a low around 12.
Saturday
Mostly sunny, with a high near 27.
Additional Forecasts and Information
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Forecast AreaABOUT THIS FORECAST
Point Forecast:
Islip NY
40.73°N 73.22°W (Elev. 7 ft)
40.73°N 73.22°W (Elev. 7 ft)
5:25 am EST Jan 25, 2026
9am EST Jan 25, 2026-6pm EST Jan 31, 2026
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