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Current conditions at
Islip, Long Island Mac Arthur Airport (KISP)
Lat: 40.79°NLon: 73.1°WElev: 98ft.
Partly Cloudy
45°F
7°C
| Humidity | 30% |
| Wind Speed | W 18 G 36 mph |
| Barometer | 29.91 in (1013.0 mb) |
| Dewpoint | 15°F (-9°C) |
| Visibility | 10.00 mi |
| Wind Chill | 37°F (3°C) |
| Last update | 28 Nov 2:56 pm EST |
Extended Forecast for
Islip NY
Tonight

Low: 31 °F
Mostly Clear
Saturday

High: 43 °F
Sunny
Saturday Night

Low: 32 °F
Increasing
CloudsSunday
High: 52 °F
Chance Rain
then RainSunday Night

Low: 34 °F
Chance Rain
Monday

High: 42 °F
Mostly Sunny
Monday Night

Low: 30 °F
Increasing
CloudsTuesday
High: 45 °F
Chance Rain
then RainTuesday Night

Low: 31 °F
Rain Likely
Detailed Forecast
Tonight
Mostly clear, with a low around 31. Wind chill values between 25 and 30. West wind 11 to 18 mph, with gusts as high as 40 mph.
Saturday
Sunny, with a high near 43. Wind chill values between 20 and 30. Northwest wind 7 to 10 mph, with gusts as high as 21 mph.
Saturday Night
Increasing clouds, with a low around 32. Calm wind becoming south around 6 mph after midnight.
Sunday
Rain, mainly after 1pm. High near 52. South wind 9 to 17 mph, with gusts as high as 30 mph. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.
Sunday Night
A 50 percent chance of rain before 1am. Cloudy, then gradually becoming partly cloudy, with a low around 34. Southwest wind 13 to 16 mph becoming west after midnight. Winds could gust as high as 29 mph.
Monday
Mostly sunny, with a high near 42.
Monday Night
Increasing clouds, with a low around 30.
Tuesday
Rain, mainly after 1pm. High near 45. Chance of precipitation is 80%.
Tuesday Night
Rain likely, mainly before 1am. Mostly cloudy, with a low around 31. Chance of precipitation is 60%.
Wednesday
Mostly sunny, with a high near 41.
Wednesday Night
Partly cloudy, with a low around 30.
Thursday
Partly sunny, with a high near 43.
Thursday Night
Partly cloudy, with a low around 25.
Friday
Mostly sunny, with a high near 40.
Additional Forecasts and Information
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ABOUT THIS FORECAST
Point Forecast:
Islip NY
40.73°N 73.22°W (Elev. 7 ft)
40.73°N 73.22°W (Elev. 7 ft)
1:32 pm EST Nov 28, 2025
3pm EST Nov 28, 2025-6pm EST Dec 5, 2025


