Hazardous Weather Conditions
Current conditions at
Islip, Long Island Mac Arthur Airport (KISP)
Lat: 40.79°NLon: 73.1°WElev: 98ft.
Overcast
41°F
5°C
| Humidity | 67% |
| Wind Speed | SE 13 mph |
| Barometer | 30.40 in (1029.6 mb) |
| Dewpoint | 31°F (-1°C) |
| Visibility | 10.00 mi |
| Wind Chill | 34°F (1°C) |
| Last update | 15 Mar 4:56 pm EDT |
Extended Forecast for
Islip Terrace NY
Wind Advisory March 16, 02:00pm until March 17, 04:00am
Tonight
Low: 40 °F⇑
Slight Chance
Showers then
ShowersMonday

High: 57 °F
Showers and
Patchy FogMonday Night

Low: 34 °F
Showers
Tuesday
High: 43 °F
Chance
Showers then
SunnyTuesday Night

Low: 25 °F
Mostly Clear
Wednesday

High: 38 °F
Mostly Sunny
Wednesday Night

Low: 29 °F
Mostly Cloudy
Thursday

High: 43 °F
Partly Sunny
Thursday Night

Low: 33 °F
Partly Cloudy
Detailed Forecast
Tonight
Showers, with thunderstorms also possible after 5am. Temperature falling to near 40 by 9pm, then rising to around 47 during the remainder of the night. East wind 7 to 11 mph, with gusts as high as 28 mph. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.
Monday
Showers and possibly a thunderstorm. Patchy fog. High near 57. South wind 14 to 18 mph, with gusts as high as 40 mph. Chance of precipitation is 90%. New rainfall amounts between a quarter and half of an inch possible.
Monday Night
Showers and possibly a thunderstorm before 2am, then a chance of showers. Low around 34. South wind 14 to 18 mph, with gusts as high as 50 mph. Chance of precipitation is 100%. New rainfall amounts between a quarter and half of an inch possible.
Tuesday
A 30 percent chance of showers before 8am. Mostly sunny, with a high near 43. West wind 13 to 15 mph, with gusts as high as 30 mph.
Tuesday Night
Mostly clear, with a low around 25. Northwest wind 8 to 10 mph, with gusts as high as 24 mph.
Wednesday
Mostly sunny, with a high near 38.
Wednesday Night
Mostly cloudy, with a low around 29.
Thursday
Partly sunny, with a high near 43.
Thursday Night
Partly cloudy, with a low around 33.
Friday
Mostly sunny, with a high near 48.
Friday Night
A 30 percent chance of rain. Mostly cloudy, with a low around 36.
Saturday
A 40 percent chance of rain. Partly sunny, with a high near 50.
Saturday Night
Mostly cloudy, with a low around 33.
Sunday
Partly sunny, with a high near 48.
Additional Forecasts and Information
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ABOUT THIS FORECAST
Point Forecast:
Islip Terrace NY
40.75°N 73.18°W (Elev. 30 ft)
40.75°N 73.18°W (Elev. 30 ft)
2:22 pm EDT Mar 15, 2026
5pm EDT Mar 15, 2026-6pm EDT Mar 22, 2026



