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Hazardous Weather Conditions
Current conditions at
Islip, Long Island Mac Arthur Airport (KISP)
Lat: 40.79°NLon: 73.1°WElev: 98ft.
Overcast
60°F
16°C
| Humidity | 75% |
| Wind Speed | SE 9 mph |
| Barometer | 30.09 in (1018.9 mb) |
| Dewpoint | 52°F (11°C) |
| Visibility | 10.00 mi |
| Last update | 16 Oct 1:56 am EDT |
Extended Forecast for
Lake Grove NY
Overnight
Low: 52 °F
Chance
ShowersFriday
High: 70 °F
Showers then
Showers
LikelyFriday Night
Low: 45 °F
Showers
Saturday
High: 53 °F
Showers
Likely then
Mostly SunnySaturday Night
Low: 38 °F
Mostly Clear
Sunday
High: 55 °F
Sunny
Sunday Night
Low: 43 °F
Mostly Clear
Monday
High: 59 °F
Mostly Sunny
Monday Night
Low: 44 °F
Mostly Cloudy
Detailed Forecast
Overnight
A 30 percent chance of showers after 5am. Mostly cloudy, with a low around 52. Southeast wind around 6 mph.
Friday
Showers before 2pm, then a chance of showers and thunderstorms after 5pm. High near 70. Southwest wind 10 to 14 mph, with gusts as high as 24 mph. Chance of precipitation is 100%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Friday Night
Showers and thunderstorms before 2am, then showers likely. Low around 45. Southwest wind 8 to 11 mph becoming northwest after midnight. Winds could gust as high as 22 mph. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Saturday
Showers likely before 8am. Mostly cloudy, then gradually becoming sunny, with a high near 53. North wind 15 to 17 mph, with gusts as high as 29 mph. Chance of precipitation is 60%.
Saturday Night
Mostly clear, with a low around 38. North wind 9 to 13 mph.
Sunday
Sunny, with a high near 55.
Sunday Night
Mostly clear, with a low around 43.
Monday
Mostly sunny, with a high near 59.
Monday Night
Mostly cloudy, with a low around 44.
Tuesday
Partly sunny, with a high near 63.
Tuesday Night
Partly cloudy, with a low around 47.
Wednesday
Sunny, with a high near 62.
Wednesday Night
Mostly clear, with a low around 45.
Thursday
Mostly sunny, with a high near 59.
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)
2:39 am EDT Oct 16, 2026
2am EDT Oct 16, 2026-6pm EDT Oct 22, 2026
Additional Resources
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Hourly Weather Forecast
