Current conditions at
Islip, Long Island Mac Arthur Airport (KISP)
Lat: 40.79°NLon: 73.1°WElev: 98ft.
Overcast
44°F
7°C
| Humidity | 83% |
| Wind Speed | N 12 G 24 mph |
| Barometer | 29.58 in (1001.7 mb) |
| Dewpoint | 39°F (4°C) |
| Visibility | 10.00 mi |
| Wind Chill | 38°F (3°C) |
| Last update | 13 Nov 1:56 pm EST |
Extended Forecast for
Stony Brook NY
This Afternoon
High: 47 °F
Chance Rain
Tonight
Low: 35 °F
Cloudy
Saturday
High: 48 °F
Partly Sunny
Saturday Night
Low: 39 °F
Decreasing
CloudsSunday
High: 51 °F
Sunny
Sunday Night
Low: 39 °F
Mostly Clear
Monday
High: 52 °F
Sunny
Monday Night
Low: 39 °F
Mostly Clear
Tuesday
High: 55 °F
Sunny
Detailed Forecast
This Afternoon
A 30 percent chance of rain before 4pm. Cloudy, with a high near 47. North wind 13 to 15 mph.
Tonight
Cloudy, with a low around 35. North wind around 11 mph.
Saturday
Partly sunny, with a high near 48. Northwest wind 11 to 14 mph.
Saturday Night
Mostly cloudy, then gradually becoming clear, with a low around 39. West wind 11 to 13 mph.
Sunday
Sunny, with a high near 51. Northwest wind 11 to 13 mph.
Sunday Night
Mostly clear, with a low around 39.
Monday
Sunny, with a high near 52.
Monday Night
Mostly clear, with a low around 39.
Tuesday
Sunny, with a high near 55.
Tuesday Night
Mostly clear, with a low around 41.
Wednesday
Sunny, with a high near 59.
Wednesday Night
Mostly clear, with a low around 43.
Thursday
Sunny, with a high near 60.
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)
1:17 pm EST Nov 13, 2026
2pm EST Nov 13, 2026-6pm EST Nov 19, 2026
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