Current conditions at
Islip, Long Island Mac Arthur Airport (KISP)
Lat: 40.79°NLon: 73.1°WElev: 98ft.
Mostly Cloudy
52°F
11°C
| Humidity | 69% |
| Wind Speed | N 9 G 20 mph |
| Barometer | 29.83 in (1010.1 mb) |
| Dewpoint | 42°F (6°C) |
| Visibility | 10.00 mi |
| Wind Chill | 49°F (9°C) |
| Last update | 22 Nov 1:56 pm EST |
Extended Forecast for
North Great River NY
This Afternoon
High: 52 °F
Mostly Sunny
Tonight
Low: 32 °F
Partly Cloudy
Sunday
High: 49 °F
Mostly Sunny
Sunday Night
Low: 38 °F
Mostly Clear
Monday
High: 52 °F
Sunny
Monday Night
Low: 37 °F
Increasing
CloudsTuesday
High: 57 °F
Cloudy then
Chance RainTuesday Night
Low: 49 °F
Rain
Wednesday
High: 59 °F
Chance Rain
Detailed Forecast
This Afternoon
Mostly sunny, with a high near 52. North wind around 8 mph.
Tonight
Partly cloudy, with a low around 32. North wind 5 to 7 mph becoming calm after midnight.
Sunday
Mostly sunny, with a high near 49. Calm wind becoming southwest 5 to 8 mph in the morning.
Sunday Night
Mostly clear, with a low around 38. West wind 7 to 11 mph, with gusts as high as 22 mph.
Monday
Sunny, with a high near 52. Northwest wind 10 to 14 mph.
Monday Night
Increasing clouds, with a low around 37.
Tuesday
A 30 percent chance of rain after 1pm. Cloudy, with a high near 57.
Tuesday Night
Rain. Low around 49. Chance of precipitation is 90%.
Wednesday
A 40 percent chance of rain. Cloudy, with a high near 59.
Wednesday Night
A 30 percent chance of rain before 1am. Mostly cloudy, with a low around 40.
Thanksgiving Day
Mostly sunny, with a high near 47.
Thursday Night
Mostly clear, with a low around 30.
Friday
Mostly sunny, with a high near 43.
Additional Forecasts and Information
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Forecast AreaABOUT THIS FORECAST
Point Forecast:
North Great River NY
40.77°N 73.15°W (Elev. 30 ft)
40.77°N 73.15°W (Elev. 30 ft)
12:52 pm EST Nov 22, 2025
2pm EST Nov 22, 2025-6pm EST Nov 28, 2025
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