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Current conditions at
Islip, Long Island Mac Arthur Airport (KISP)
Lat: 40.79°NLon: 73.1°WElev: 98ft.
Mostly Cloudy
50°F
10°C
| Humidity | 48% |
| Wind Speed | N 15 G 21 mph |
| Barometer | 30.21 in (1022.9 mb) |
| Dewpoint | 31°F (-1°C) |
| Visibility | 10.00 mi |
| Wind Chill | 45°F (7°C) |
| Last update | 17 Oct 4:56 pm EDT |
Extended Forecast for
Islip, Long Island Mac Arthur Airport NY
Tonight
Low: 37 °F
Decreasing
CloudsSunday
High: 57 °F
Sunny
Sunday Night
Low: 41 °F
Clear
Monday
High: 62 °F
Increasing
CloudsMonday Night
Low: 46 °F
Mostly Cloudy
Tuesday
High: 65 °F
Partly Sunny
Tuesday Night
Low: 46 °F
Partly Cloudy
Wednesday
High: 60 °F
Mostly Sunny
and BreezyWednesday Night
Low: 45 °F
Mostly Cloudy
Detailed Forecast
Tonight
Mostly cloudy, then gradually becoming clear, with a low around 37. North wind 10 to 14 mph, with gusts as high as 24 mph.
Sunday
Sunny, with a high near 57. Northeast wind 8 to 10 mph.
Sunday Night
Clear, with a low around 41. Northeast wind 3 to 6 mph.
Monday
Increasing clouds, with a high near 62. Northeast wind 11 to 14 mph.
Monday Night
Mostly cloudy, with a low around 46. North wind 11 to 16 mph.
Tuesday
Partly sunny, with a high near 65.
Tuesday Night
Partly cloudy, with a low around 46.
Wednesday
Mostly sunny, with a high near 60. Breezy.
Wednesday Night
Mostly cloudy, with a low around 45.
Thursday
Partly sunny, with a high near 62.
Thursday Night
Partly cloudy, with a low around 47.
Friday
Mostly sunny, with a high near 62.
Friday Night
Partly cloudy, with a low around 46.
Saturday
Mostly sunny, with a high near 60. Breezy.
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)
2:23 pm EDT Oct 17, 2026
5pm EDT Oct 17, 2026-6pm EDT Oct 24, 2026
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