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Hazardous Weather Conditions
Current conditions at
Islip, Long Island Mac Arthur Airport (KISP)
Lat: 40.79°NLon: 73.1°WElev: 98ft.
Light Rain
37°F
3°C
| Humidity | 89% |
| Wind Speed | E 10 mph |
| Barometer | 29.84 in (1010.4 mb) |
| Dewpoint | 34°F (1°C) |
| Visibility | 7.00 mi |
| Wind Chill | 30°F (-1°C) |
| Last update | 20 Feb 9:56 am EST |
Extended Forecast for
Islip, Long Island Mac Arthur Airport NY
Today
High: 40 °F
Rain
Tonight
Low: 31 °F
Rain Likely
then Mostly
CloudySaturday
High: 44 °F
Partly Sunny
Saturday Night
Low: 30 °F
Slight Chance
Rain/Snow
then Slight
Chance SnowSunday
High: 37 °F
Chance Snow
Sunday Night
Low: 28 °F
Snow Likely
Monday
High: 34 °F
Chance Snow
Monday Night
Low: 23 °F
Mostly Cloudy
Tuesday
High: 36 °F
Mostly Sunny
Detailed Forecast
Today
Rain. High near 40. East wind 10 to 13 mph, with gusts as high as 23 mph. Chance of precipitation is 100%. New precipitation amounts between a tenth and quarter of an inch possible.
Tonight
Rain likely, mainly before 7pm. Mostly cloudy, with a low around 31. East wind around 5 mph becoming calm in the evening. Chance of precipitation is 60%.
Saturday
Partly sunny, with a high near 44. West wind 3 to 7 mph.
Saturday Night
A slight chance of rain and snow before 10pm, then a slight chance of snow. Mostly cloudy, with a low around 30. Calm wind becoming east around 6 mph after midnight. Chance of precipitation is 20%.
Sunday
A 50 percent chance of snow. Cloudy, with a high near 37. East wind 8 to 14 mph, with gusts as high as 25 mph.
Sunday Night
Snow likely. Cloudy, with a low around 28. Chance of precipitation is 70%. New snow accumulation of 2 to 4 inches possible.
Monday
A 40 percent chance of snow before 1pm. Cloudy, with a high near 34.
Monday Night
Mostly cloudy, with a low around 23.
Tuesday
Mostly sunny, with a high near 36.
Tuesday Night
Mostly cloudy, with a low around 22.
Wednesday
Mostly cloudy, with a high near 41.
Wednesday Night
Rain likely. Cloudy, with a low around 33. Chance of precipitation is 60%.
Thursday
A 40 percent chance of rain. Mostly cloudy, with a high near 44.
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)
1:01 am EST Feb 20, 2026
10am EST Feb 20, 2026-6pm EST Feb 26, 2026
Additional Resources
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Hourly Weather Forecast
