Current conditions at
Islip, Long Island Mac Arthur Airport (KISP)
Lat: 40.79°NLon: 73.1°WElev: 98ft.
Overcast
71°F
22°C
| Humidity | 81% |
| Wind Speed | E 5 mph |
| Barometer | 30.05 in (1017.4 mb) |
| Dewpoint | 65°F (18°C) |
| Visibility | 10.00 mi |
| Last update | 22 Aug 10:56 am EDT |
Extended Forecast for
Commack NY
Today
High: 74 °F
Cloudy
Tonight
Low: 63 °F
Chance
T-storms then
Showers
Likely and
Patchy FogSunday
High: 80 °F
Chance
Showers and
Patchy FogSunday Night
Low: 63 °F
Slight Chance
T-stormsMonday
High: 78 °F
Mostly Sunny
then Slight
Chance
T-stormsMonday Night
Low: 61 °F
Mostly Clear
Tuesday
High: 78 °F
Sunny
Tuesday Night
Low: 62 °F
Mostly Clear
Wednesday
High: 81 °F
Sunny
Detailed Forecast
Today
Cloudy, with a high near 74. East wind around 6 mph.
Tonight
A slight chance of showers before 11pm, then a chance of showers and thunderstorms between 11pm and 2am, then showers likely and possibly a thunderstorm after 2am. Patchy fog after 2am. Otherwise, mostly cloudy, with a low around 63. East wind around 5 mph. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Sunday
A chance of showers before 2pm, then a chance of showers and thunderstorms between 2pm and 5pm, then a chance of showers after 5pm. Patchy fog before 9am. Otherwise, mostly cloudy, with a high near 80. Southeast wind 5 to 10 mph becoming southwest in the afternoon. Chance of precipitation is 30%.
Sunday Night
A slight chance of showers before 8pm, then a slight chance of showers and thunderstorms between 8pm and 2am. Partly cloudy, with a low around 63. Southwest wind 6 to 9 mph. Chance of precipitation is 20%.
Monday
A 20 percent chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 78. West wind 6 to 11 mph.
Monday Night
Mostly clear, with a low around 61.
Tuesday
Sunny, with a high near 78.
Tuesday Night
Mostly clear, with a low around 62.
Wednesday
Sunny, with a high near 81.
Wednesday Night
Partly cloudy, with a low around 65.
Thursday
A 30 percent chance of showers. Partly sunny, with a high near 80.
Thursday Night
A 50 percent chance of showers. Mostly cloudy, with a low around 66.
Friday
A 40 percent chance of showers. Partly sunny, with a high near 81.
Additional Forecasts and Information
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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)
3:42 am EDT Aug 22, 2026
11am EDT Aug 22, 2026-6pm EDT Aug 28, 2026
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