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Hazardous Weather Conditions
Current conditions at
Islip, Long Island Mac Arthur Airport (KISP)
Lat: 40.79°NLon: 73.1°WElev: 98ft.
Partly Cloudy
29°F
-2°C
| Humidity | 49% |
| Wind Speed | Calm |
| Barometer | 30.15 in (1021.1 mb) |
| Dewpoint | 12°F (-11°C) |
| Visibility | 10.00 mi |
| Last update | 3 Feb 5:56 pm EST |
Extended Forecast for
Lake Grove NY
Tonight
Low: 16 °F
Mostly Cloudy
Wednesday
High: 32 °F
Sunny
Wednesday Night
Low: 13 °F
Partly Cloudy
Thursday
High: 29 °F
Sunny
Thursday Night
Low: 11 °F
Partly Cloudy
Friday
High: 28 °F
Partly Sunny
Friday Night
Low: 11 °F
Chance Snow
Saturday
High: 20 °F
Cold and
BlusterySaturday Night
Low: 4 °F
Mostly Clear
and Blustery
then Mostly
Clear
Detailed Forecast
Tonight
Mostly cloudy, with a low around 16. West wind around 5 mph becoming calm in the evening.
Wednesday
Sunny, with a high near 32. Wind chill values between 10 and 20. Northwest wind 5 to 9 mph.
Wednesday Night
Partly cloudy, with a low around 13. Light north wind.
Thursday
Sunny, with a high near 29. Wind chill values between 10 and 20. North wind 3 to 7 mph.
Thursday Night
Partly cloudy, with a low around 11. Calm wind.
Friday
Partly sunny, with a high near 28.
Friday Night
A 50 percent chance of snow. Mostly cloudy, with a low around 11.
Saturday
Mostly sunny and cold, with a high near 20. Blustery.
Saturday Night
Mostly clear, with a low around 4. Blustery.
Sunday
Mostly sunny and cold, with a high near 19.
Sunday Night
Partly cloudy, with a low around 4.
Monday
Mostly sunny, with a high near 22.
Monday Night
Partly cloudy, with a low around 11.
Tuesday
Mostly sunny, with a high near 28.
Additional Forecasts and Information
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Forecast AreaABOUT THIS FORECAST
Point Forecast:
Lake Grove NY
40.85°N 73.1°W (Elev. 144 ft)
40.85°N 73.1°W (Elev. 144 ft)
12:54 pm EST Feb 3, 2026
6pm EST Feb 3, 2026-6pm EST Feb 10, 2026
Additional Resources
Radar & Satellite Image
Hourly Weather Forecast
