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Current conditions at
Islip, Long Island Mac Arthur Airport (KISP)
Lat: 40.79°NLon: 73.1°WElev: 98ft.
A Few Clouds
48°F
9°C
| Humidity | 66% |
| Wind Speed | Calm |
| Barometer | 30.54 in (1034.1 mb) |
| Dewpoint | 37°F (3°C) |
| Visibility | 10.00 mi |
| Last update | 18 Oct 6:56 pm EDT |
Extended Forecast for
Nissequogue NY
Tonight
Low: 41 °F
Clear
Monday
High: 61 °F
Increasing
CloudsMonday Night
Low: 47 °F
Partly Cloudy
Tuesday
High: 64 °F
Mostly Cloudy
Tuesday Night
Low: 47 °F
Partly Cloudy
then Mostly
Clear and
BreezyWednesday
High: 60 °F
Mostly Sunny
Wednesday Night
Low: 44 °F
Partly Cloudy
Thursday
High: 63 °F
Mostly Sunny
Thursday Night
Low: 47 °F
Mostly Clear
Detailed Forecast
Tonight
Clear, with a low around 41. Light and variable wind.
Monday
Increasing clouds, with a high near 61. Northeast wind 9 to 13 mph.
Monday Night
Partly cloudy, with a low around 47. Northeast wind 9 to 14 mph.
Tuesday
Mostly cloudy, with a high near 64. North wind 14 to 16 mph, with gusts as high as 26 mph.
Tuesday Night
Partly cloudy, with a low around 47. Breezy, with a northeast wind 14 to 20 mph.
Wednesday
Mostly sunny, with a high near 60.
Wednesday Night
Partly cloudy, with a low around 44.
Thursday
Mostly sunny, with a high near 63.
Thursday Night
Mostly clear, with a low around 47.
Friday
Sunny, with a high near 58.
Friday Night
Mostly clear, with a low around 43.
Saturday
Sunny, with a high near 56.
Saturday Night
Mostly clear, with a low around 43.
Sunday
Mostly sunny, with a high near 60.
Additional Forecasts and Information
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Forecast AreaABOUT THIS FORECAST
Point Forecast:
Nissequogue NY
40.9°N 73.18°W (Elev. 7 ft)
40.9°N 73.18°W (Elev. 7 ft)
6:50 pm EDT Oct 18, 2026
7pm EDT Oct 18, 2026-6pm EDT Oct 25, 2026
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