Current conditions at
Islip, Long Island Mac Arthur Airport (KISP)
Lat: 40.79°NLon: 73.1°WElev: 98ft.
A Few Clouds
78°F
26°C
| Humidity | 62% |
| Wind Speed | NE 13 mph |
| Barometer | 30.10 in (1019.2 mb) |
| Dewpoint | 64°F (18°C) |
| Visibility | 10.00 mi |
| Heat Index | 80°F (27°C) |
| Last update | 15 Aug 7:56 am EDT |
Extended Forecast for
Stony Brook NY
Today
High: 85 °F
Sunny
Tonight
Low: 69 °F
Increasing
CloudsSaturday
High: 82 °F
Mostly Sunny
Saturday Night
Low: 69 °F
Mostly Clear
Sunday
High: 86 °F
Sunny then
Slight Chance
T-stormsSunday Night
Low: 67 °F
Chance
ShowersMonday
High: 78 °F
Mostly Sunny
Monday Night
Low: 63 °F
Partly Cloudy
Tuesday
High: 78 °F
Mostly Sunny
Detailed Forecast
Today
Sunny, with a high near 85. Northeast wind 8 to 11 mph becoming southeast in the afternoon.
Tonight
Increasing clouds, with a low around 69. East wind 3 to 7 mph.
Saturday
Mostly sunny, with a high near 82. Southeast wind 6 to 8 mph.
Saturday Night
Mostly clear, with a low around 69. South wind 5 to 7 mph.
Sunday
A 20 percent chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 86. Southwest wind 7 to 11 mph.
Sunday Night
A chance of showers between 8pm and 2am. Mostly cloudy, with a low around 67. Chance of precipitation is 30%.
Monday
Mostly sunny, with a high near 78.
Monday Night
Partly cloudy, with a low around 63.
Tuesday
Mostly sunny, with a high near 78.
Tuesday Night
Partly cloudy, with a low around 63.
Wednesday
Partly sunny, with a high near 78.
Wednesday Night
Partly cloudy, with a low around 63.
Thursday
Sunny, with a high near 83.
Additional Forecasts and Information
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Forecast AreaABOUT THIS FORECAST
Point Forecast:
Stony Brook NY
40.92°N 73.15°W (Elev. 36 ft)
40.92°N 73.15°W (Elev. 36 ft)
7:41 am EDT Aug 15, 2025
8am EDT Aug 15, 2025-6pm EDT Aug 21, 2025
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