Current conditions at
Islip, Long Island Mac Arthur Airport (KISP)
Lat: 40.79°NLon: 73.1°WElev: 98ft.
Overcast
58°F
14°C
| Humidity | 97% |
| Wind Speed | N 7 mph |
| Barometer | 30.05 in (1017.6 mb) |
| Dewpoint | 57°F (14°C) |
| Visibility | 10.00 mi |
| Last update | 4 Oct 10:56 pm EDT |
Extended Forecast for
North Great River NY
Tonight
Low: 54 °F
Mostly Cloudy
Monday
High: 68 °F
Mostly Sunny
then Sunny
and BreezyMonday Night
Low: 44 °F
Clear
Tuesday
High: 61 °F
Sunny
Tuesday Night
Low: 45 °F
Mostly Clear
Wednesday
High: 65 °F
Sunny
Wednesday Night
Low: 56 °F
Mostly Clear
Thursday
High: 71 °F
Sunny
Thursday Night
Low: 56 °F
Mostly Clear
Detailed Forecast
Tonight
Mostly cloudy, with a low around 54. North wind around 5 mph becoming calm after midnight.
Monday
Partly sunny, then gradually becoming sunny, with a high near 68. Breezy, with a northwest wind 6 to 11 mph increasing to 17 to 22 mph in the afternoon.
Monday Night
Clear, with a low around 44. Northwest wind 9 to 16 mph.
Tuesday
Sunny, with a high near 61. Northwest wind around 9 mph.
Tuesday Night
Mostly clear, with a low around 45. Light west wind.
Wednesday
Sunny, with a high near 65.
Wednesday Night
Mostly clear, with a low around 56.
Thursday
Sunny, with a high near 71.
Thursday Night
Mostly clear, with a low around 56.
Friday
Sunny, with a high near 68.
Friday Night
Mostly clear, with a low around 54.
Saturday
Sunny, with a high near 66.
Saturday Night
Partly cloudy, with a low around 51.
Sunday
Mostly sunny, with a high near 64.
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)
7:32 pm EDT Oct 4, 2026
11pm EDT Oct 4, 2026-6pm EDT Oct 11, 2026
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