Hazardous Weather Conditions
Current conditions at
Islip, Long Island Mac Arthur Airport (KISP)
Lat: 40.79°NLon: 73.1°WElev: 98ft.
Light Snow
12°F
-11°C
| Humidity | 77% |
| Wind Speed | NE 12 mph |
| Barometer | 30.54 in (1034.4 mb) |
| Dewpoint | 6°F (-14°C) |
| Visibility | 2.00 mi |
| Wind Chill | -2°F (-19°C) |
| Last update | 25 Jan 7:56 am EST |
Extended Forecast for
Brentwood NY
Winter Storm Warning until January 26, 01:00pm
NOW until 1:00pm Mon
Winter Storm Warning
Today
High: 32 °F
Heavy Snow
then
Snow/SleetTonight
Low: 29 °F
Wintry Mix
then Wintry
Mix LikelyMonday
High: 31 °F
Chance Wintry
MixMonday Night
Low: 13 °F
Partly Cloudy
Tuesday
High: 22 °F
Mostly Sunny
Tuesday Night
Low: 9 °F
Mostly Clear
Wednesday
High: 23 °F
Mostly Sunny
Wednesday Night
Low: 12 °F
Mostly Cloudy
Detailed Forecast
Today
Snow before 4pm, then snow and sleet. The snow could be heavy at times. High near 32. Wind chill values between 5 and 15. Northeast wind 7 to 17 mph, with gusts as high as 30 mph. Chance of precipitation is 100%. Total daytime snow and sleet accumulation of 6 to 10 inches possible.
Tonight
Sleet, possibly mixed with freezing rain, mainly before 1am. Steady temperature around 29. Wind chill values between 15 and 20. Northeast wind 9 to 17 mph, with gusts as high as 32 mph. Chance of precipitation is 100%. New ice accumulation of less than a 0.1 of an inch possible. 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 4pm, then a slight chance of snow after 4pm. Cloudy, with a high near 31. Wind chill values between 15 and 20. North wind 6 to 11 mph becoming northwest in the afternoon. Winds could gust as high as 22 mph. Chance of precipitation is 40%.
Monday Night
Partly cloudy, with a low around 13. Wind chill values between zero and 10. West wind 13 to 15 mph, with gusts as high as 29 mph.
Tuesday
Mostly sunny, with a high near 22. West wind around 11 mph, with gusts as high as 22 mph.
Tuesday Night
Mostly clear, with a low around 9.
Wednesday
Mostly sunny, with a high near 23.
Wednesday Night
Mostly cloudy, with a low around 12.
Thursday
Partly sunny, with a high near 23.
Thursday Night
Mostly clear, with a low around 8.
Friday
Mostly sunny, with a high near 22.
Friday Night
Partly cloudy, with a low around 11.
Saturday
Mostly sunny, with a high near 27.
Additional Forecasts and Information
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Forecast AreaABOUT THIS FORECAST
Point Forecast:
Brentwood NY
40.78°N 73.24°W (Elev. 66 ft)
40.78°N 73.24°W (Elev. 66 ft)
5:25 am EST Jan 25, 2026
8am EST Jan 25, 2026-6pm EST Jan 31, 2026
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