National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce
Current conditions at

Islip, Long Island Mac Arthur Airport (KISP)

Lat: 40.79°NLon: 73.1°WElev: 98ft.

Overcast

10°C

50°F

Humidity 86%
Wind Speed Calm
Barometer 1024.1 mb (30.25 in)
Dewpoint 8°C (46°F)
Visibility 16 km
Last update 3 May 10:56 pm EDT
Extended Forecast for

Brentwood NY

  • Tonight

    Tonight: Partly cloudy, with a low around 8. East wind 8 to 10 km/h.

    Low: 8 °C

    Partly Cloudy

  • Saturday

    Saturday: Partly sunny, with a high near 16. Southeast wind 11 to 16 km/h.

    High: 16 °C

    Partly Sunny

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 8. East wind around 13 km/h.

    Low: 8 °C

    Mostly Cloudy

  • Sunday

    Sunday: Rain likely, mainly after 2pm. Cloudy, with a high near 14. Southeast wind 13 to 16 km/h. Chance of precipitation is 60%. New precipitation amounts between 2.5 and 5 mm possible.

    High: 14 °C

    Slight Chance
    Rain then
    Rain Likely

  • Sunday Night

    Sunday Night: Rain likely. Cloudy, with a low around 10. South wind 14 to 16 km/h. Chance of precipitation is 70%. New precipitation amounts between 7.5 mm and 1 cm possible.

    Low: 10 °C

    Rain Likely

  • Monday

    Monday: A 30 percent chance of rain before 8am. Mostly cloudy, with a high near 20.

    High: 20 °C

    Chance Rain
    then Mostly
    Cloudy

  • Monday Night

    Monday Night: A 30 percent chance of showers after 9pm. Mostly cloudy, with a low around 12.

    Low: 12 °C

    Chance
    Showers

  • Tuesday

    Tuesday: Partly sunny, with a high near 22.

    High: 22 °C

    Partly Sunny

  • Tuesday Night

    Tuesday Night: A 30 percent chance of showers after 2am. Mostly cloudy, with a low around 12.

    Low: 12 °C

    Mostly Cloudy
    then Chance
    Showers

Detailed Forecast

Tonight
Partly cloudy, with a low around 8. East wind 8 to 10 km/h.
Saturday
Partly sunny, with a high near 16. Southeast wind 11 to 16 km/h.
Saturday Night
Mostly cloudy, with a low around 8. East wind around 13 km/h.
Sunday
Rain likely, mainly after 2pm. Cloudy, with a high near 14. Southeast wind 13 to 16 km/h. Chance of precipitation is 60%. New precipitation amounts between 2.5 and 5 mm possible.
Sunday Night
Rain likely. Cloudy, with a low around 10. South wind 14 to 16 km/h. Chance of precipitation is 70%. New precipitation amounts between 7.5 mm and 1 cm possible.
Monday
A 30 percent chance of rain before 8am. Mostly cloudy, with a high near 20.
Monday Night
A 30 percent chance of showers after 9pm. Mostly cloudy, with a low around 12.
Tuesday
Partly sunny, with a high near 22.
Tuesday Night
A 30 percent chance of showers after 2am. Mostly cloudy, with a low around 12.
Wednesday
A chance of showers before 8am, then a chance of showers after 2pm. Mostly cloudy, with a high near 21. Chance of precipitation is 40%.
Wednesday Night
A 40 percent chance of showers. Mostly cloudy, with a low around 13.
Thursday
A 50 percent chance of showers. Mostly cloudy, with a high near 19.
Thursday Night
A 50 percent chance of showers. Mostly cloudy, with a low around 12.
Friday
A 40 percent chance of showers. Partly sunny, with a high near 19.
Click Map For Forecast
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ABOUT THIS FORECAST

 
Point Forecast:
Brentwood NY
 40.78°N 73.24°W (Elev. 66 m)
Last Update:
10:27 pm EDT May 3, 2024
Forecast Valid:
11pm EDT May 3, 2024-6pm EDT May 10, 2024
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation