Hazardous Weather Conditions
Current conditions at
Islip, Long Island Mac Arthur Airport (KISP)
Lat: 40.79°NLon: 73.1°WElev: 98ft.
Mostly Cloudy
36°F
2°C
| Humidity | 62% |
| Wind Speed | NE 10 mph |
| Barometer | 30.09 in (1019.0 mb) |
| Dewpoint | 24°F (-4°C) |
| Visibility | 10.00 mi |
| Wind Chill | 29°F (-2°C) |
| Last update | 15 Feb 11:56 am EST |
Extended Forecast for
Islip, Long Island Mac Arthur Airport NY
This Afternoon
High: 38 °F
Mostly Cloudy
Tonight
Low: 29 °F
Chance Snow
then SnowWashington's Birthday
High: 38 °F
Snow Likely
then Slight
Chance
Rain/SnowMonday Night
Low: 28 °F
Mostly Cloudy
then Slight
Chance
Rain/SnowTuesday
High: 42 °F
Gradual
ClearingTuesday Night
Low: 31 °F
Increasing
CloudsWednesday
High: 40 °F
Cloudy then
Chance RainWednesday Night
Low: 31 °F
Rain Likely
Thursday
High: 40 °F
Mostly Cloudy
Detailed Forecast
This Afternoon
Mostly cloudy, with a high near 38. East wind around 6 mph.
Tonight
Snow, mainly after 10pm. Low around 29. Northeast wind 3 to 6 mph. Chance of precipitation is 80%. New snow accumulation of around an inch possible.
Washington's Birthday
Snow likely, possibly mixing with rain after noon, then gradually ending. Cloudy, then gradually becoming mostly sunny, with a high near 38. Wind chill values between 25 and 35. Northeast wind 5 to 10 mph. Chance of precipitation is 60%. New snow accumulation of less than a half inch possible.
Monday Night
A slight chance of rain and snow showers after 1am. Mostly cloudy, with a low around 28. Calm wind. Chance of precipitation is 20%.
Tuesday
Cloudy through mid morning, then gradual clearing, with a high near 42. Calm wind becoming southwest 5 to 7 mph.
Tuesday Night
Increasing clouds, with a low around 31.
Wednesday
A 50 percent chance of rain after 1pm. Cloudy, with a high near 40.
Wednesday Night
Rain likely, mainly before 1am. Mostly cloudy, with a low around 31. Chance of precipitation is 70%.
Thursday
Mostly cloudy, with a high near 40.
Thursday Night
A 30 percent chance of rain after 1am. Mostly cloudy, with a low around 30.
Friday
Rain likely. Mostly cloudy, with a high near 42. Chance of precipitation is 60%.
Friday Night
A 50 percent chance of rain. Mostly cloudy, with a low around 31.
Saturday
A 40 percent chance of rain. Partly sunny, with a high near 41.
Additional Forecasts and Information
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Forecast AreaABOUT THIS FORECAST
Point Forecast:
Islip, Long Island Mac Arthur Airport NY
40.78°N 73.09°W (Elev. 49 ft)
40.78°N 73.09°W (Elev. 49 ft)
1:46 am EST Feb 15, 2026
12pm EST Feb 15, 2026-6pm EST Feb 21, 2026
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