Current conditions at
Islip, Long Island Mac Arthur Airport (KISP)
Lat: 40.79°NLon: 73.1°WElev: 98ft.
A Few Clouds
28°F
-2°C
| Humidity | 34% |
| Wind Speed | NW 16 G 24 mph |
| Barometer | 30.16 in (1021.3 mb) |
| Dewpoint | 3°F (-16°C) |
| Visibility | 10.00 mi |
| Wind Chill | 16°F (-9°C) |
| Last update | 9 Feb 2:56 pm EST |
Extended Forecast for
Lake Grove NY
Tonight
Low: 16 °F
Mostly Cloudy
Tuesday
High: 36 °F
Partly Sunny
then Slight
Chance
Rain/SnowTuesday Night
Low: 28 °F
Chance Rain
then Chance
Rain/SnowWednesday
High: 38 °F
Mostly Sunny
Wednesday Night
Low: 22 °F
Partly Cloudy
Thursday
High: 33 °F
Mostly Sunny
Thursday Night
Low: 19 °F
Partly Cloudy
Friday
High: 32 °F
Mostly Sunny
Friday Night
Low: 20 °F
Mostly Clear
Detailed Forecast
Tonight
Mostly cloudy, with a low around 16. Northwest wind around 6 mph becoming calm in the evening.
Tuesday
A slight chance of snow after 1pm, mixing with rain after 4pm. Mostly cloudy, with a high near 36. Wind chill values between 20 and 30. Calm wind becoming south around 6 mph in the afternoon. Chance of precipitation is 20%.
Tuesday Night
A chance of rain before 1am, then a slight chance of rain and snow between 1am and 4am, then a slight chance of snow after 4am. Cloudy, then gradually becoming partly cloudy, with a low around 28. Calm wind becoming west around 5 mph after midnight. Chance of precipitation is 50%.
Wednesday
Mostly sunny, with a high near 38. Wind chill values between 25 and 30. West wind 6 to 14 mph.
Wednesday Night
Partly cloudy, with a low around 22. West wind around 9 mph, with gusts as high as 21 mph.
Thursday
Mostly sunny, with a high near 33.
Thursday Night
Partly cloudy, with a low around 19.
Friday
Mostly sunny, with a high near 32.
Friday Night
Mostly clear, with a low around 20.
Saturday
Sunny, with a high near 34.
Saturday Night
Partly cloudy, with a low around 22.
Sunday
A chance of rain and snow. Mostly cloudy, with a high near 37. Chance of precipitation is 40%.
Sunday Night
Rain and snow likely. Cloudy, with a low around 28. Chance of precipitation is 70%.
Washington's Birthday
Rain likely. Mostly cloudy, with a high near 40. Chance of precipitation is 60%.
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)
1:12 pm EST Feb 9, 2026
3pm EST Feb 9, 2026-6pm EST Feb 16, 2026
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