Current conditions at
Islip, Long Island Mac Arthur Airport (KISP)
Lat: 40.79°NLon: 73.1°WElev: 98ft.
Mostly Cloudy
68°F
20°C
| Humidity | 70% |
| Wind Speed | SW 7 mph |
| Barometer | 30.08 in (1018.4 mb) |
| Dewpoint | 58°F (14°C) |
| Visibility | 10.00 mi |
| Last update | 30 Sep 2:56 pm EDT |
Extended Forecast for
Commack NY
Tonight
Low: 61 °F
Mostly Cloudy
Thursday
High: 75 °F
Mostly Cloudy
Thursday Night
Low: 65 °F
Partly Cloudy
Friday
High: 79 °F
Mostly Sunny
Friday Night
Low: 59 °F
Chance
ShowersSaturday
High: 69 °F
Sunny
Saturday Night
Low: 55 °F
Partly Cloudy
Sunday
High: 66 °F
Mostly Sunny
Sunday Night
Low: 55 °F
Mostly Cloudy
then Chance
Showers
Detailed Forecast
Tonight
Mostly cloudy, with a low around 61. Southwest wind around 6 mph.
Thursday
Mostly cloudy, with a high near 75. Southwest wind 5 to 9 mph.
Thursday Night
Partly cloudy, with a low around 65. Southwest wind around 7 mph.
Friday
Mostly sunny, with a high near 79. Southwest wind 7 to 11 mph.
Friday Night
A 40 percent chance of showers before 2am. Mostly cloudy, with a low around 59. West wind around 9 mph becoming north after midnight.
Saturday
Sunny, with a high near 69.
Saturday Night
Partly cloudy, with a low around 55.
Sunday
Mostly sunny, with a high near 66.
Sunday Night
A 30 percent chance of showers after 2am. Mostly cloudy, with a low around 55.
Monday
A 30 percent chance of showers before 8am. Mostly sunny, with a high near 68.
Monday Night
Mostly clear, with a low around 47.
Tuesday
Sunny, with a high near 58.
Tuesday Night
Mostly clear, with a low around 46.
Wednesday
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:
Commack NY
40.85°N 73.28°W (Elev. 144 ft)
40.85°N 73.28°W (Elev. 144 ft)
2:27 pm EDT Sep 30, 2026
3pm EDT Sep 30, 2026-6pm EDT Oct 7, 2026
Additional Resources
Radar & Satellite Image
Hourly Weather Forecast
