Current conditions at
Islip, Long Island Mac Arthur Airport (KISP)
Lat: 40.79°NLon: 73.1°WElev: 98ft.
Fair
44°F
7°C
| Humidity | 51% |
| Wind Speed | N 12 mph |
| Barometer | 30.40 in (1029.4 mb) |
| Dewpoint | 27°F (-3°C) |
| Visibility | 10.00 mi |
| Wind Chill | 38°F (3°C) |
| Last update | 12 Apr 1:56 am EDT |
Extended Forecast for
Lake Grove NY
Overnight
Low: 38 °F
Clear
Sunday
High: 54 °F
Increasing
CloudsSunday Night
Low: 44 °F
Mostly Cloudy
Monday
High: 69 °F
Mostly Cloudy
then Slight
Chance
ShowersMonday Night
Low: 53 °F
Partly Cloudy
Tuesday
High: 75 °F
Mostly Sunny
Tuesday Night
Low: 57 °F
Mostly Cloudy
Wednesday
High: 80 °F
Mostly Sunny
Wednesday Night
Low: 58 °F
Chance
Showers then
Mostly Cloudy
Detailed Forecast
Overnight
Clear, with a low around 38. North wind 7 to 9 mph.
Sunday
Increasing clouds, with a high near 54. Northeast wind 5 to 8 mph becoming south in the afternoon.
Sunday Night
Mostly cloudy, with a low around 44. South wind around 7 mph.
Monday
A 20 percent chance of showers after 2pm. Mostly cloudy, with a high near 69. Southwest wind 10 to 14 mph.
Monday Night
Partly cloudy, with a low around 53. Southwest wind 6 to 8 mph.
Tuesday
Mostly sunny, with a high near 75.
Tuesday Night
Mostly cloudy, with a low around 57.
Wednesday
Mostly sunny, with a high near 80.
Wednesday Night
A chance of showers between 8pm and midnight. Mostly cloudy, with a low around 58. Chance of precipitation is 30%.
Thursday
Partly sunny, with a high near 78.
Thursday Night
Mostly cloudy, with a low around 57.
Friday
Mostly sunny, with a high near 71.
Friday Night
Partly cloudy, with a low around 52.
Saturday
Mostly sunny, with a high near 67.
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)
2:46 am EDT Apr 12, 2026
2am EDT Apr 12, 2026-6pm EDT Apr 18, 2026
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