Current conditions at
Islip, Long Island Mac Arthur Airport (KISP)
Lat: 40.79°NLon: 73.1°WElev: 98ft.
A Few Clouds
40°F
4°C
| Humidity | 86% |
| Wind Speed | S 3 mph |
| Barometer | 30.46 in (1031.4 mb) |
| Dewpoint | 36°F (2°C) |
| Visibility | 10.00 mi |
| Last update | 9 Apr 11:56 pm EDT |
Extended Forecast for
2 Miles NNW Stony Brook NY
Overnight
Low: 38 °F
Patchy Fog
Friday
High: 57 °F
Patchy Fog
then Mostly
SunnyFriday Night
Low: 46 °F
Mostly Cloudy
Saturday
High: 60 °F
Sunny
Saturday Night
Low: 41 °F
Clear
Sunday
High: 56 °F
Mostly Sunny
Sunday Night
Low: 46 °F
Mostly Cloudy
Monday
High: 66 °F
Mostly Cloudy
Monday Night
Low: 55 °F
Mostly Cloudy
Detailed Forecast
Overnight
Patchy fog after 1am. Otherwise, partly cloudy, with a low around 38. Light south wind.
Friday
Patchy fog before 9am. Otherwise, mostly sunny, with a high near 57. Light south wind increasing to 5 to 10 mph in the morning.
Friday Night
Mostly cloudy, with a low around 46. South wind 9 to 14 mph.
Saturday
Sunny, with a high near 60. Northwest wind around 14 mph.
Saturday Night
Clear, with a low around 41. North wind around 6 mph.
Sunday
Mostly sunny, with a high near 56.
Sunday Night
Mostly cloudy, with a low around 46.
Monday
Mostly cloudy, with a high near 66.
Monday Night
Mostly cloudy, with a low around 55.
Tuesday
Mostly sunny, with a high near 74.
Tuesday Night
Mostly cloudy, with a low around 57.
Wednesday
Partly sunny, with a high near 73.
Wednesday Night
Mostly cloudy, with a low around 53.
Thursday
Partly sunny, with a high near 66.
Additional Forecasts and Information
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Forecast AreaABOUT THIS FORECAST
Point Forecast:
2 Miles NNW Stony Brook NY
40.92°N 73.15°W (Elev. 36 ft)
40.92°N 73.15°W (Elev. 36 ft)
2:47 pm EDT Apr 9, 2026
12am EDT Apr 10, 2026-6pm EDT Apr 16, 2026
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