Current conditions at
Islip, Long Island Mac Arthur Airport (KISP)
Lat: 40.79°NLon: 73.1°WElev: 98ft.
Mostly Cloudy
38°F
3°C
| Humidity | 57% |
| Wind Speed | N 15 mph |
| Barometer | 29.89 in (1012.3 mb) |
| Dewpoint | 24°F (-4°C) |
| Visibility | 10.00 mi |
| Wind Chill | 29°F (-2°C) |
| Last update | 26 Feb 9:56 am EST |
Extended Forecast for
Lake Grove NY
Today
High: 37 °F
Mostly Cloudy
Tonight
Low: 21 °F
Decreasing
CloudsFriday
High: 38 °F
Sunny
Friday Night
Low: 28 °F
Mostly Clear
Saturday
High: 44 °F
Sunny
Saturday Night
Low: 28 °F
Increasing
CloudsSunday
High: 37 °F
Clearing Late
Sunday Night
Low: 17 °F
Partly Cloudy
Monday
High: 27 °F
Chance Snow
Detailed Forecast
Today
Mostly cloudy, with a high near 37. Northwest wind around 5 mph becoming calm in the afternoon.
Tonight
Mostly cloudy, then gradually becoming mostly clear, with a low around 21. Calm wind.
Friday
Sunny, with a high near 38. Wind chill values between 20 and 30. Calm wind becoming south around 5 mph.
Friday Night
Mostly clear, with a low around 28. Calm wind.
Saturday
Sunny, with a high near 44. Southwest wind 3 to 6 mph.
Saturday Night
Increasing clouds, with a low around 28.
Sunday
Cloudy, then gradual clearing during the afternoon, with a high near 37.
Sunday Night
Partly cloudy, with a low around 17.
Monday
A 30 percent chance of snow. Mostly cloudy, with a high near 27.
Monday Night
Mostly cloudy, with a low around 18.
Tuesday
A 30 percent chance of snow. Mostly cloudy, with a high near 35.
Tuesday Night
A 50 percent chance of snow. Cloudy, with a low around 27.
Wednesday
A 50 percent chance of rain. Partly sunny, with a high near 41.
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)
6:03 am EST Feb 26, 2026
10am EST Feb 26, 2026-6pm EST Mar 4, 2026
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