Hazardous Weather Conditions
Current conditions at
Islip, Long Island Mac Arthur Airport (KISP)
Lat: 40.79°NLon: 73.1°WElev: 98ft.
Fog
21°C
70°F
| Humidity | 97% |
| Wind Speed | SW 7 km/h |
| Barometer | 1010.9 mb (29.85 in) |
| Dewpoint | 21°C (69°F) |
| Visibility | 0.10 km |
| Last update | 19 Jun 6:56 am EDT |
Extended Forecast for
Lake Grove NY
Juneteenth
High: 31 °C
Mostly Sunny
then Chance
T-stormsTonight
Low: 20 °C
Chance
T-storms then
Chance
ShowersFriday
High: 28 °C
Sunny
Friday Night
Low: 19 °C
Mostly Clear
Saturday
High: 29 °C
Mostly Sunny
Saturday Night
Low: 20 °C
Mostly Cloudy
Sunday
High: 29 °C
Partly Sunny
Sunday Night
Low: 20 °C
Partly Cloudy
Monday
High: 31 °C
Sunny
Detailed Forecast
Juneteenth
A chance of thunderstorms after 5pm. Mostly sunny, with a high near 31. Southwest wind 8 to 13 km/h increasing to 19 to 24 km/h in the afternoon. Chance of precipitation is 30%.
Tonight
A 30 percent chance of showers and thunderstorms before 2am. Cloudy, then gradually becoming partly cloudy, with a low around 20. West wind 22 to 27 km/h decreasing to 16 to 21 km/h in the evening.
Friday
Sunny, with a high near 28. West wind 16 to 21 km/h.
Friday Night
Mostly clear, with a low around 19. West wind 8 to 11 km/h.
Saturday
Mostly sunny, with a high near 29. Southwest wind 8 to 14 km/h.
Saturday Night
Mostly cloudy, with a low around 20.
Sunday
Partly sunny, with a high near 29.
Sunday Night
Partly cloudy, with a low around 20.
Monday
Sunny, with a high near 31.
Monday Night
Mostly clear, with a low around 22.
Tuesday
Sunny, with a high near 33.
Tuesday Night
Mostly clear, with a low around 22.
Wednesday
Sunny, with a high near 31.
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 m)
40.85°N 73.1°W (Elev. 144 m)
7:33 pm EDT Jun 18, 2025
7am EDT Jun 19, 2025-6pm EDT Jun 25, 2025
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