Current conditions at
Islip, Long Island Mac Arthur Airport (KISP)
Lat: 40.79°NLon: 73.1°WElev: 98ft.
A Few Clouds
53°F
12°C
| Humidity | 45% |
| Wind Speed | N 14 G 21 mph |
| Barometer | 30.14 in (1020.4 mb) |
| Dewpoint | 32°F (0°C) |
| Visibility | 10.00 mi |
| Wind Chill | 49°F (9°C) |
| Last update | 6 Oct 9:56 am EDT |
Extended Forecast for
Brentwood NY
Today
High: 63 °F
Sunny
Tonight
Low: 41 °F
Mostly Clear
Wednesday
High: 65 °F
Sunny
Wednesday Night
Low: 56 °F
Mostly Clear
Thursday
High: 73 °F
Sunny
Thursday Night
Low: 56 °F
Mostly Clear
Friday
High: 68 °F
Sunny
Friday Night
Low: 53 °F
Mostly Clear
Saturday
High: 67 °F
Sunny
Detailed Forecast
Today
Sunny, with a high near 63. Northwest wind 10 to 13 mph.
Tonight
Mostly clear, with a low around 41. Light northwest wind.
Wednesday
Sunny, with a high near 65. Light southwest wind increasing to 6 to 11 mph in the morning.
Wednesday Night
Mostly clear, with a low around 56. Southwest wind 8 to 10 mph.
Thursday
Sunny, with a high near 73. Southwest wind 8 to 10 mph.
Thursday Night
Mostly clear, with a low around 56.
Friday
Sunny, with a high near 68.
Friday Night
Mostly clear, with a low around 53.
Saturday
Sunny, with a high near 67.
Saturday Night
Partly cloudy, with a low around 54.
Sunday
Mostly sunny, with a high near 68.
Sunday Night
A 40 percent chance of showers. Mostly cloudy, with a low around 57.
Columbus Day
A 40 percent chance of showers. Mostly cloudy, with a high near 69.
Additional Forecasts and Information
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Forecast AreaABOUT THIS FORECAST
Point Forecast:
Brentwood NY
40.78°N 73.27°W (Elev. 98 ft)
40.78°N 73.27°W (Elev. 98 ft)
3:07 am EDT Oct 6, 2026
10am EDT Oct 6, 2026-6pm EDT Oct 12, 2026
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