Current conditions at
Islip, Long Island Mac Arthur Airport (KISP)
Lat: 40.79°NLon: 73.1°WElev: 98ft.
Partly Cloudy
49°F
9°C
| Humidity | 46% |
| Wind Speed | NW 8 mph |
| Barometer | 30.12 in (1019.9 mb) |
| Dewpoint | 29°F (-2°C) |
| Visibility | 10.00 mi |
| Wind Chill | 46°F (8°C) |
| Last update | 15 Nov 3:56 pm EST |
Extended Forecast for
Brentwood NY
Tonight
Low: 35 °F
Partly Cloudy
Monday
High: 50 °F
Sunny
Monday Night
Low: 33 °F
Mostly Clear
Tuesday
High: 56 °F
Sunny
Tuesday Night
Low: 39 °F
Clear
Wednesday
High: 61 °F
Sunny
Wednesday Night
Low: 40 °F
Mostly Clear
Thursday
High: 61 °F
Sunny
Thursday Night
Low: 43 °F
Mostly Clear
Detailed Forecast
Tonight
Partly cloudy, with a low around 35. North wind 6 to 8 mph.
Monday
Sunny, with a high near 50. North wind 6 to 9 mph.
Monday Night
Mostly clear, with a low around 33. Light northwest wind.
Tuesday
Sunny, with a high near 56. West wind 3 to 6 mph.
Tuesday Night
Clear, with a low around 39. West wind 3 to 5 mph.
Wednesday
Sunny, with a high near 61.
Wednesday Night
Mostly clear, with a low around 40.
Thursday
Sunny, with a high near 61.
Thursday Night
Mostly clear, with a low around 43.
Friday
Sunny, with a high near 63.
Friday Night
Mostly clear, with a low around 43.
Saturday
Sunny, with a high near 61.
Saturday Night
Partly cloudy, with a low around 45.
Sunday
Mostly sunny, with a high near 62.
Additional Forecasts and Information
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Forecast AreaABOUT THIS FORECAST
Point Forecast:
Brentwood NY
40.75°N 73.24°W (Elev. 49 ft)
40.75°N 73.24°W (Elev. 49 ft)
1:19 pm EST Nov 15, 2026
4pm EST Nov 15, 2026-6pm EST Nov 22, 2026
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