Current conditions at
Islip, Long Island Mac Arthur Airport (KISP)
Lat: 40.79°NLon: 73.1°WElev: 98ft.
Light Rain Fog/Mist
61°F
16°C
| Humidity | 90% |
| Wind Speed | NE 15 G 29 mph |
| Barometer | 30.09 in (1019.0 mb) |
| Dewpoint | 58°F (14°C) |
| Visibility | 6.00 mi |
| Last update | 8 Jun 1:56 am EDT |
Extended Forecast for
Stony Brook NY
Overnight
Low: 61 °F
Partly Cloudy
Monday
High: 77 °F
Sunny
Monday Night
Low: 60 °F
Clear
Tuesday
High: 83 °F
Sunny
Tuesday Night
Low: 65 °F
Mostly Clear
Wednesday
High: 82 °F
Partly Sunny
Wednesday Night
Low: 65 °F
Chance
ShowersThursday
High: 86 °F
Partly Sunny
Thursday Night
Low: 65 °F
Partly Cloudy
Detailed Forecast
Overnight
Cloudy early, then becoming partly cloudy, with a low around 61. Northeast wind around 9 mph.
Monday
Sunny, with a high near 77. Northeast wind 5 to 9 mph.
Monday Night
Clear, with a low around 60. South wind 5 to 8 mph.
Tuesday
Sunny, with a high near 83. Southwest wind 6 to 11 mph.
Tuesday Night
Mostly clear, with a low around 65. Southwest wind 8 to 10 mph.
Wednesday
Partly sunny, with a high near 82.
Wednesday Night
A 40 percent chance of showers after 8pm. Mostly cloudy, with a low around 65.
Thursday
Partly sunny, with a high near 86.
Thursday Night
Partly cloudy, with a low around 65.
Friday
Mostly sunny, with a high near 86.
Friday Night
A 30 percent chance of showers. Partly cloudy, with a low around 66.
Saturday
Mostly sunny, with a high near 87.
Saturday Night
Partly cloudy, with a low around 69.
Sunday
Mostly sunny, with a high near 88.
Additional Forecasts and Information
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Forecast AreaABOUT THIS FORECAST
Point Forecast:
Stony Brook NY
40.92°N 73.12°W (Elev. 112 ft)
40.92°N 73.12°W (Elev. 112 ft)
12:59 am EDT Jun 8, 2026
2am EDT Jun 8, 2026-6pm EDT Jun 14, 2026
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