Hazardous Weather Conditions
Current conditions at
Islip, Long Island Mac Arthur Airport (KISP)
Lat: 40.79°NLon: 73.1°WElev: 98ft.
Partly Cloudy
48°F
9°C
| Humidity | 74% |
| Wind Speed | SW 8 mph |
| Barometer | 30.10 in (1019.2 mb) |
| Dewpoint | 40°F (4°C) |
| Visibility | 10.00 mi |
| Wind Chill | 44°F (7°C) |
| Last update | 11 Apr 1:56 am EDT |
Extended Forecast for
Lake Grove NY
Overnight
Low: 45 °F
Slight Chance
ShowersSaturday
High: 60 °F
Sunny
Saturday Night
Low: 39 °F
Clear
Sunday
High: 54 °F
Mostly Sunny
Sunday Night
Low: 43 °F
Mostly Cloudy
Monday
High: 64 °F
Mostly Cloudy
Monday Night
Low: 53 °F
Mostly Cloudy
Tuesday
High: 71 °F
Partly Sunny
Tuesday Night
Low: 52 °F
Mostly Cloudy
Detailed Forecast
Overnight
A 20 percent chance of showers. Cloudy early, then becoming partly cloudy, with a low around 45. Southwest wind around 6 mph.
Saturday
Sunny, with a high near 60. Northwest wind 11 to 14 mph.
Saturday Night
Clear, with a low around 39. North wind around 6 mph.
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 43. South wind 6 to 8 mph.
Monday
Mostly cloudy, with a high near 64.
Monday Night
Mostly cloudy, with a low around 53.
Tuesday
Partly sunny, with a high near 71.
Tuesday Night
Mostly cloudy, with a low around 52.
Wednesday
Partly sunny, with a high near 70.
Wednesday Night
Mostly cloudy, with a low around 55.
Thursday
Partly sunny, with a high near 72.
Thursday Night
Mostly cloudy, with a low around 52.
Friday
Mostly sunny, with a high near 66.
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)
7:41 pm EDT Apr 10, 2026
2am EDT Apr 11, 2026-6pm EDT Apr 17, 2026
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