Current conditions at
Islip, Long Island Mac Arthur Airport (KISP)
Lat: 40.79°NLon: 73.1°WElev: 98ft.
Fair
N/A
| Humidity | NA |
| Wind Speed | W 8 mph |
| Barometer | 30.10 in |
| Dewpoint | N/A |
| Visibility | 10.00 mi |
| Last update | 13 Jan 12:56 am EST |
Extended Forecast for
Lake Grove NY
Overnight
Low: 30 °F
Mostly Clear
Tuesday
High: 44 °F
Sunny
Tuesday Night
Low: 40 °F
Mostly Cloudy
Wednesday
High: 46 °F
Slight Chance
ShowersWednesday Night
Low: 31 °F
Chance
ShowersThursday
High: 42 °F
Chance Rain
Thursday Night
Low: 19 °F
Mostly Cloudy
Friday
High: 32 °F
Mostly Sunny
Friday Night
Low: 24 °F
Mostly Cloudy
Detailed Forecast
Overnight
Mostly clear, with a low around 30. West wind around 6 mph.
Tuesday
Sunny, with a high near 44. Wind chill values between 25 and 35. West wind 6 to 9 mph.
Tuesday Night
Mostly cloudy, with a steady temperature around 40. Southwest wind around 8 mph, with gusts as high as 20 mph.
Wednesday
A 20 percent chance of showers before 1pm. Cloudy, with a high near 46. Southwest wind 6 to 8 mph.
Wednesday Night
A 40 percent chance of showers, mainly after 1am. Cloudy, with a low around 31. Calm wind.
Thursday
A 30 percent chance of rain before 1pm. Cloudy, then gradually becoming mostly sunny, with a high near 42.
Thursday Night
Mostly cloudy, with a low around 19.
Friday
Mostly sunny, with a high near 32.
Friday Night
Mostly cloudy, with a low around 24.
Saturday
Mostly sunny, with a high near 40.
Saturday Night
Mostly cloudy, with a low around 27.
Sunday
A 30 percent chance of rain. Partly sunny, with a high near 36.
Sunday Night
Partly cloudy, with a low around 19.
M.L.King Day
Mostly 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 ft)
40.85°N 73.1°W (Elev. 144 ft)
5:50 pm EST Jan 12, 2026
1am EST Jan 13, 2026-6pm EST Jan 19, 2026
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