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 | 32% |
| Wind Speed | W 16 G 26 mph |
| Barometer | 30.15 in (1020.9 mb) |
| Dewpoint | 23°F (-5°C) |
| Visibility | 10.00 mi |
| Wind Chill | 47°F (8°C) |
| Last update | 7 Apr 1:56 pm EDT |
Extended Forecast for
Brentwood NY
This Afternoon
High: 53 °F
Sunny
Tonight
Low: 27 °F
Clear
Wednesday
High: 48 °F
Sunny
Wednesday Night
Low: 33 °F
Mostly Clear
Thursday
High: 50 °F
Mostly Sunny
Thursday Night
Low: 38 °F
Partly Cloudy
Friday
High: 57 °F
Mostly Sunny
Friday Night
Low: 45 °F
Mostly Cloudy
Saturday
High: 59 °F
Mostly Sunny
Detailed Forecast
This Afternoon
Sunny, with a high near 53. Northwest wind around 17 mph.
Tonight
Clear, with a low around 27. Northwest wind 9 to 11 mph, with gusts as high as 23 mph.
Wednesday
Sunny, with a high near 48. Wind chill values between 25 and 35 early. North wind around 7 mph becoming southeast in the afternoon.
Wednesday Night
Mostly clear, with a low around 33. Light southeast wind.
Thursday
Mostly sunny, with a high near 50. Calm wind becoming south 5 to 8 mph in the morning.
Thursday Night
Partly cloudy, with a low around 38.
Friday
Mostly sunny, with a high near 57.
Friday Night
Mostly cloudy, with a low around 45.
Saturday
Mostly sunny, with a high near 59.
Saturday Night
Clear, with a low around 40.
Sunday
Sunny, with a high near 55.
Sunday Night
Partly cloudy, with a low around 45.
Monday
Partly sunny, with a high near 64.
Additional Forecasts and Information
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Forecast AreaABOUT THIS FORECAST
Point Forecast:
Brentwood NY
40.78°N 73.24°W (Elev. 66 ft)
40.78°N 73.24°W (Elev. 66 ft)
2:35 pm EDT Apr 7, 2026
2pm EDT Apr 7, 2026-6pm EDT Apr 13, 2026
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