Current conditions at
Islip, Long Island Mac Arthur Airport (KISP)
Lat: 40.79°NLon: 73.1°WElev: 98ft.
A Few Clouds
50°F
10°C
| Humidity | 63% |
| Wind Speed | S 9 mph |
| Barometer | 30.34 in (1027.6 mb) |
| Dewpoint | 38°F (3°C) |
| Visibility | 10.00 mi |
| Wind Chill | 46°F (8°C) |
| Last update | 10 Apr 10:56 am EDT |
Extended Forecast for
Lake Grove NY
Today
High: 61 °F
Sunny
Tonight
Low: 44 °F
Partly Cloudy
then Slight
Chance
ShowersSaturday
High: 60 °F
Sunny
Saturday Night
Low: 40 °F
Mostly Clear
Sunday
High: 54 °F
Mostly Sunny
Sunday Night
Low: 44 °F
Mostly Cloudy
Monday
High: 65 °F
Mostly Cloudy
Monday Night
Low: 53 °F
Partly Cloudy
Tuesday
High: 71 °F
Mostly Sunny
Detailed Forecast
Today
Sunny, with a high near 61. South wind 9 to 14 mph.
Tonight
A 20 percent chance of showers after midnight. Mostly cloudy, with a low around 44. Southwest wind 8 to 14 mph.
Saturday
Sunny, with a high near 60. Northwest wind 8 to 13 mph, with gusts as high as 23 mph.
Saturday Night
Mostly clear, with a low around 40. Light north wind.
Sunday
Mostly sunny, with a high near 54. Calm wind becoming south 5 to 8 mph in the afternoon.
Sunday Night
Mostly cloudy, with a low around 44.
Monday
Mostly cloudy, with a high near 65.
Monday Night
Partly cloudy, with a low around 53.
Tuesday
Mostly sunny, with a high near 71.
Tuesday Night
Mostly cloudy, with a low around 53.
Wednesday
Partly sunny, with a high near 71.
Wednesday Night
A 30 percent chance of showers. Mostly cloudy, with a low around 54.
Thursday
Partly sunny, with a high near 71.
Additional Forecasts and Information
Basemap Options
Click map to change the forecast location
Loading map...
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)
6:31 am EDT Apr 10, 2026
11am EDT Apr 10, 2026-6pm EDT Apr 16, 2026
Additional Resources
Radar & Satellite Image
Hourly Weather Forecast
