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Current conditions at
Islip, Long Island Mac Arthur Airport (KISP)
Lat: 40.79°NLon: 73.1°WElev: 98ft.
Mostly Cloudy
67°F
19°C
| Humidity | 81% |
| Wind Speed | W 5 mph |
| Barometer | 29.99 in (1015.6 mb) |
| Dewpoint | 61°F (16°C) |
| Visibility | 10.00 mi |
| Last update | 29 Aug 6:56 am EDT |
Extended Forecast for
Lake Grove NY
Today
High: 78 °F
Slight Chance
T-storms then
Chance
ShowersTonight
Low: 56 °F
Chance
Showers then
Mostly ClearSaturday
High: 76 °F
Sunny
Saturday Night
Low: 58 °F
Mostly Clear
Sunday
High: 78 °F
Sunny
Sunday Night
Low: 58 °F
Mostly Clear
Labor Day
High: 77 °F
Mostly Sunny
Monday Night
Low: 60 °F
Mostly Clear
Tuesday
High: 77 °F
Sunny
Detailed Forecast
Today
A 30 percent chance of showers and thunderstorms, mainly after 5pm. Mostly sunny, with a high near 78. Southwest wind 6 to 13 mph.
Tonight
A 30 percent chance of showers before 8pm. Partly cloudy, with a low around 56. North wind around 7 mph.
Saturday
Sunny, with a high near 76. Northwest wind around 7 mph.
Saturday Night
Mostly clear, with a low around 58. West wind around 5 mph becoming light and variable.
Sunday
Sunny, with a high near 78. North wind around 6 mph.
Sunday Night
Mostly clear, with a low around 58.
Labor Day
Mostly sunny, with a high near 77.
Monday Night
Mostly clear, with a low around 60.
Tuesday
Sunny, with a high near 77.
Tuesday Night
Mostly clear, with a low around 60.
Wednesday
Mostly sunny, with a high near 78.
Wednesday Night
Partly cloudy, with a low around 61.
Thursday
Mostly sunny, with a high near 77.
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)
5:31 am EDT Aug 29, 2025
7am EDT Aug 29, 2025-6pm EDT Sep 4, 2025
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