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Current conditions at
Islip, Long Island Mac Arthur Airport (KISP)
Lat: 40.79°NLon: 73.1°WElev: 98ft.
Overcast
43°F
6°C
| Humidity | 93% |
| Wind Speed | W 6 mph |
| Barometer | 29.78 in (1008.5 mb) |
| Dewpoint | 41°F (5°C) |
| Visibility | 10.00 mi |
| Wind Chill | 39°F (4°C) |
| Last update | 11 Jan 8:56 am EST |
Extended Forecast for
Islip, Long Island Mac Arthur Airport NY
Today
High: 45 °F⇓
Mostly Cloudy
then Chance
Rain/SnowTonight
Low: 28 °F
Breezy.
Chance
Rain/Snow
then Mostly
ClearMonday
High: 40 °F
Sunny
Monday Night
Low: 31 °F
Partly Cloudy
Tuesday
High: 44 °F
Sunny
Tuesday Night
Low: 37 °F
Mostly Cloudy
Wednesday
High: 46 °F
Cloudy
Wednesday Night
Low: 30 °F
Cloudy then
Chance RainThursday
High: 39 °F
Chance Rain
then Chance
Rain/Snow
Detailed Forecast
Today
A chance of rain and snow showers after 4pm. Cloudy early, then gradual clearing, with a temperature rising to near 45 by noon, then falling to around 40 during the remainder of the day. West wind 9 to 14 mph. Chance of precipitation is 30%.
Tonight
A chance of rain and snow showers before 7pm, then a slight chance of snow showers between 7pm and 10pm. Mostly clear, with a low around 28. Wind chill values between 20 and 25. Breezy, with a west wind 15 to 22 mph, with gusts as high as 36 mph. Chance of precipitation is 30%.
Monday
Sunny, with a high near 40. Wind chill values between 20 and 30. West wind 10 to 14 mph, with gusts as high as 26 mph.
Monday Night
Partly cloudy, with a low around 31. Wind chill values between 25 and 30. Southwest wind 7 to 9 mph.
Tuesday
Sunny, with a high near 44. Southwest wind 7 to 10 mph.
Tuesday Night
Mostly cloudy, with a low around 37.
Wednesday
Cloudy, with a high near 46.
Wednesday Night
A 30 percent chance of rain after 1am. Mostly cloudy, with a low around 30.
Thursday
A chance of rain before 1pm, then a chance of rain and snow. Partly sunny, with a high near 39. Chance of precipitation is 30%.
Thursday Night
A 30 percent chance of snow. Mostly cloudy, with a low around 21.
Friday
Partly sunny, with a high near 33.
Friday Night
Partly cloudy, with a low around 23.
Saturday
Mostly sunny, with a high near 37.
Additional Forecasts and Information
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Forecast AreaABOUT THIS FORECAST
Point Forecast:
Islip, Long Island Mac Arthur Airport NY
40.8°N 73.09°W (Elev. 98 ft)
40.8°N 73.09°W (Elev. 98 ft)
1:40 am EST Jan 11, 2026
10am EST Jan 11, 2026-6pm EST Jan 17, 2026
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