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Current conditions at
Islip, Long Island Mac Arthur Airport (KISP)
Lat: 40.79°NLon: 73.1°WElev: 98ft.
A Few Clouds
61°F
16°C
| Humidity | 52% |
| Wind Speed | Calm |
| Barometer | 29.81 in (1009.4 mb) |
| Dewpoint | 43°F (6°C) |
| Visibility | 10.00 mi |
| Last update | 8 Nov 4:56 pm EST |
Extended Forecast for
Brentwood NY
Tonight

Low: 47 °F
Increasing
CloudsSunday

High: 60 °F
Rain
Sunday Night

Low: 51 °F
Rain Likely
and Patchy
FogMonday

High: 56 °F
Chance
ShowersMonday Night

Low: 30 °F
Partly Cloudy
Veterans Day

High: 44 °F
Partly Sunny
Tuesday Night

Low: 35 °F
Partly Cloudy
Wednesday

High: 53 °F
Partly Sunny
Wednesday Night

Low: 40 °F
Mostly Cloudy
Detailed Forecast
Tonight
Increasing clouds, with a low around 47. Light and variable wind becoming east around 6 mph after midnight.
Sunday
Rain. High near 60. Southeast wind 7 to 13 mph. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.
Sunday Night
Rain or drizzle likely before 7pm, then drizzle or light rain likely between 7pm and 10pm, then showers likely after 10pm. Patchy fog before 10pm. Otherwise, cloudy, with a low around 51. Southeast wind around 7 mph becoming west after midnight. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.
Monday
A 50 percent chance of showers, mainly before 1pm. Mostly cloudy, with a high near 56. West wind 6 to 11 mph.
Monday Night
Partly cloudy, with a low around 30. West wind around 11 mph.
Veterans Day
Partly sunny, with a high near 44.
Tuesday Night
Partly cloudy, with a low around 35.
Wednesday
Partly sunny, with a high near 53.
Wednesday Night
Mostly cloudy, with a low around 40.
Thursday
Mostly sunny, with a high near 51.
Thursday Night
Mostly clear, with a low around 37.
Friday
Mostly sunny, with a high near 51.
Friday Night
Partly cloudy, with a low around 35.
Saturday
Mostly sunny, with a high near 49.
Additional Forecasts and Information
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ABOUT THIS FORECAST
Point Forecast:
Brentwood NY
40.78°N 73.27°W (Elev. 98 ft)
40.78°N 73.27°W (Elev. 98 ft)
12:49 pm EST Nov 8, 2025
5pm EST Nov 8, 2025-6pm EST Nov 15, 2025


