News Headlines
Current conditions at
Islip, Long Island Mac Arthur Airport (KISP)
Lat: 40.79°NLon: 73.1°WElev: 98ft.
Mostly Cloudy
44°F
7°C
| Humidity | 65% |
| Wind Speed | NW 15 mph |
| Barometer | 29.74 in (1007.1 mb) |
| Dewpoint | 33°F (1°C) |
| Visibility | 10.00 mi |
| Wind Chill | 37°F (3°C) |
| Last update | 11 Jan 11:56 am EST |
Extended Forecast for
Islip, Long Island Mac Arthur Airport NY
This Afternoon
High: 48 °F⇓
Chance
Rain/SnowTonight
Low: 28 °F
Breezy.
Chance
Rain/Snow
then Mostly
ClearMonday
High: 42 °F
Sunny
Monday Night
Low: 31 °F
Partly Cloudy
Tuesday
High: 46 °F
Sunny
Tuesday Night
Low: 41 °F
Mostly Cloudy
Wednesday
High: 49 °F
Cloudy
Wednesday Night
Low: 32 °F
Cloudy then
Chance RainThursday
High: 42 °F
Chance Rain
then Chance
Rain/Snow
Detailed Forecast
This Afternoon
A chance of rain and snow showers after 4pm. Mostly sunny, with a temperature falling to around 41 by 5pm. West wind around 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 21 mph, with gusts as high as 34 mph. Chance of precipitation is 30%.
Monday
Sunny, with a high near 42. Wind chill values between 20 and 30. West wind 13 to 15 mph, with gusts as high as 28 mph.
Monday Night
Partly cloudy, with a low around 31. Southwest wind 8 to 11 mph.
Tuesday
Sunny, with a high near 46. Southwest wind 8 to 11 mph.
Tuesday Night
Mostly cloudy, with a steady temperature around 41.
Wednesday
Cloudy, with a high near 49.
Wednesday Night
A 30 percent chance of rain after 1am. Mostly cloudy, with a low around 32.
Thursday
A chance of rain before 1pm, then a chance of rain and snow. Partly sunny, with a high near 42. Chance of precipitation is 30%.
Thursday Night
A chance of rain and snow before 1am, then a chance of snow. Mostly cloudy, with a low around 22. Chance of precipitation is 30%.
Friday
Partly sunny, with a high near 34.
Friday Night
Partly cloudy, with a low around 23.
Saturday
Mostly sunny, with a high near 38.
Additional Forecasts and Information
Basemap Options
Click map to change the forecast location
Loading map...
Forecast AreaABOUT THIS FORECAST
Point Forecast:
Islip, Long Island Mac Arthur Airport NY
40.81°N 73.11°W (Elev. 98 ft)
40.81°N 73.11°W (Elev. 98 ft)
1:40 am EST Jan 11, 2026
12pm EST Jan 11, 2026-6pm EST Jan 17, 2026
Additional Resources
Radar & Satellite Image
Hourly Weather Forecast
