Current conditions at
Islip, Long Island Mac Arthur Airport (KISP)
Lat: 40.79°NLon: 73.1°WElev: 98ft.
Mostly Cloudy
48°F
9°C
| Humidity | 66% |
| Wind Speed | NW 14 mph |
| Barometer | 29.88 in (1012.0 mb) |
| Dewpoint | 37°F (3°C) |
| Visibility | 10.00 mi |
| Wind Chill | 42°F (6°C) |
| Last update | 5 Apr 11:56 pm EDT |
Extended Forecast for
2 Miles NNW Stony Brook NY
Overnight
Low: 39 °F
Clear
Monday
High: 53 °F
Sunny
Monday Night
Low: 40 °F
Slight Chance
ShowersTuesday
High: 50 °F
Slight Chance
ShowersTuesday Night
Low: 31 °F
Mostly Clear
Wednesday
High: 48 °F
Sunny
Wednesday Night
Low: 35 °F
Mostly Clear
Thursday
High: 52 °F
Mostly Sunny
Thursday Night
Low: 42 °F
Partly Cloudy
Detailed Forecast
Overnight
Mostly cloudy early, then becoming clear, with a low around 39. West wind 10 to 13 mph.
Monday
Sunny, with a high near 53. West wind around 15 mph.
Monday Night
A 20 percent chance of showers. Partly cloudy, with a low around 40. Northwest wind around 6 mph.
Tuesday
A 20 percent chance of showers before 2pm. Mostly sunny, with a high near 50. West wind 8 to 15 mph.
Tuesday Night
Mostly clear, with a low around 31. North wind 9 to 13 mph.
Wednesday
Sunny, with a high near 48.
Wednesday Night
Mostly clear, with a low around 35.
Thursday
Mostly sunny, with a high near 52.
Thursday Night
Partly cloudy, with a low around 42.
Friday
Mostly sunny, with a high near 63.
Friday Night
Partly cloudy, with a low around 48.
Saturday
Mostly sunny, with a high near 67.
Saturday Night
Partly cloudy, with a low around 46.
Sunday
Mostly sunny, with a high near 60.
Additional Forecasts and Information
Basemap Options
Click map to change the forecast location
Loading map...
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)
6:30 pm EDT Apr 5, 2026
12am EDT Apr 6, 2026-6pm EDT Apr 12, 2026
Additional Resources
Radar & Satellite Image
Hourly Weather Forecast
