Current conditions at
Islip, Long Island Mac Arthur Airport (KISP)
Lat: 40.79°NLon: 73.1°WElev: 98ft.
Overcast
36°F
2°C
| Humidity | 86% |
| Wind Speed | NE 7 mph |
| Barometer | 29.93 in (1013.7 mb) |
| Dewpoint | 32°F (0°C) |
| Visibility | 9.00 mi |
| Wind Chill | 30°F (-1°C) |
| Last update | 19 Feb 2:56 am EST |
Extended Forecast for
Islip, Long Island Mac Arthur Airport NY
Overnight
Low: 31 °F
Areas Fog
Thursday
High: 41 °F
Mostly Cloudy
Thursday Night
Low: 32 °F
Cloudy then
Chance RainFriday
High: 41 °F
Rain
Friday Night
Low: 32 °F
Chance Rain
Saturday
High: 43 °F
Mostly Cloudy
Saturday Night
Low: 27 °F
Chance
Rain/Snow
then Chance
SnowSunday
High: 37 °F
Mostly Cloudy
then Chance
SnowSunday Night
Low: 27 °F
Chance Snow
Detailed Forecast
Overnight
Areas of fog before 4am. Otherwise, cloudy, with a low around 31. Northeast wind around 7 mph.
Thursday
Mostly cloudy, with a high near 41. Wind chill values between 25 and 35. Northeast wind 7 to 9 mph.
Thursday Night
A 50 percent chance of rain after 4am. Cloudy, with a low around 32. Wind chill values between 25 and 30. East wind 6 to 9 mph.
Friday
Rain, mainly after 7am. High near 41. East wind 9 to 14 mph, with gusts as high as 24 mph. Chance of precipitation is 100%. New precipitation amounts between a quarter and half of an inch possible.
Friday Night
A 50 percent chance of rain, mainly before 1am. Mostly cloudy, with a low around 32. Northeast wind 5 to 8 mph becoming northwest after midnight.
Saturday
Mostly cloudy, with a high near 43.
Saturday Night
A chance of rain and snow before 10pm, then a chance of snow between 10pm and 1am. Mostly cloudy, with a low around 27. Chance of precipitation is 30%.
Sunday
A 40 percent chance of snow after 1pm. Mostly cloudy, with a high near 37.
Sunday Night
A 50 percent chance of snow. Cloudy, with a low around 27.
Monday
A 40 percent chance of snow before 1pm. Cloudy, with a high near 36.
Monday Night
Mostly cloudy, with a low around 23.
Tuesday
Sunny, with a high near 36.
Tuesday Night
Partly cloudy, with a low around 23.
Wednesday
Mostly cloudy, 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
40.81°N 73.11°W (Elev. 98 ft)
40.81°N 73.11°W (Elev. 98 ft)
1:10 am EST Feb 19, 2026
3am EST Feb 19, 2026-6pm EST Feb 25, 2026
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