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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 Fog/Mist
38°F
3°C
| Humidity | 93% |
| Wind Speed | E 13 G 21 mph |
| Barometer | 29.59 in (1002.0 mb) |
| Dewpoint | 36°F (2°C) |
| Visibility | 2.00 mi |
| Wind Chill | 30°F (-1°C) |
| Last update | 20 Feb 3:56 pm EST |
Extended Forecast for
Islip, Long Island Mac Arthur Airport NY
Winter Storm Watch February 22, 06:00am until February 23, 06:00pm
Coastal Flood Watch February 22, 10:00pm until February 23, 04:00am
This Afternoon
High: 40 °F
Rain Likely
Tonight
Low: 31 °F
Rain then
Chance
Rain/SnowSaturday
High: 44 °F
Mostly Sunny
Saturday Night
Low: 30 °F
Chance
Rain/SnowSunday
High: 37 °F
Chance Snow
then Snow
LikelySunday Night
Low: 28 °F
Snow and
Areas Blowing
SnowMonday
High: 35 °F
Snow and
Areas Blowing
SnowMonday Night
Low: 23 °F
Mostly Cloudy
Tuesday
High: 34 °F
Mostly Sunny
Detailed Forecast
This Afternoon
Rain likely. Cloudy, with a high near 40. East wind around 10 mph, with gusts as high as 21 mph. Chance of precipitation is 70%. New precipitation amounts of less than a tenth of an inch possible.
Tonight
Rain before 1am, then a slight chance of rain and snow between 1am and 3am, then a slight chance of snow after 3am. Low around 31. Northeast wind around 5 mph becoming calm. Chance of precipitation is 80%. Little or no snow accumulation expected.
Saturday
Mostly sunny, with a high near 44. Light and variable wind becoming northwest around 6 mph.
Saturday Night
A chance of rain before 10pm, then a chance of rain and snow. Mostly cloudy, with a low around 30. Calm wind becoming east around 6 mph after midnight. Chance of precipitation is 40%.
Sunday
Snow likely, mainly after 1pm. Cloudy, with a high near 37. East wind 10 to 16 mph, with gusts as high as 28 mph. Chance of precipitation is 70%. New snow accumulation of 1 to 3 inches possible.
Sunday Night
Snow. Areas of blowing snow. Low around 28. Blustery. Chance of precipitation is 90%. New snow accumulation of 4 to 8 inches possible.
Monday
Snow, mainly before 1pm. Areas of blowing snow before 4pm. High near 35. Windy. Chance of precipitation is 80%.
Monday Night
Mostly cloudy, with a low around 23.
Tuesday
Mostly sunny, with a high near 34.
Tuesday Night
Mostly cloudy, with a low around 21.
Wednesday
A 30 percent chance of snow. Mostly cloudy, with a high near 40.
Wednesday Night
A 50 percent chance of snow. Mostly cloudy, with a low around 32.
Thursday
Rain likely. Mostly cloudy, with a high near 43. Chance of precipitation is 60%.
Thursday Night
A chance of rain and snow. Mostly cloudy, with a low around 28. Chance of precipitation is 40%.
Friday
Partly sunny, with a high near 40.
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)
2:17 pm EST Feb 20, 2026
4pm EST Feb 20, 2026-6pm EST Feb 27, 2026
Additional Resources
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