Periods of Snow in the Northern Rockies and Great Lakes

Moderate to heavy lake-effect snow will develop over the eastern U.P. of Michigan and downwind from Lakes Erie and Ontario. Snow will develop over parts of the Northern Rockies/Northern High Plains into Wednesday. Read More >

Current conditions at

Islip, Long Island Mac Arthur Airport (KISP)

Lat: 40.79°NLon: 73.1°WElev: 98ft.

Fair

37°F

3°C

Humidity 52%
Wind Speed NW 9 mph
Barometer 29.71 in (1006.1 mb)
Dewpoint 21°F (-6°C)
Visibility 10.00 mi
Wind Chill30°F (-1°C)
Last update 19 Mar 12:56 am EDT
Extended Forecast for

Brentwood NY

  • Overnight

    Overnight: Partly cloudy, with a low around 33. West wind around 9 mph, with gusts as high as 22 mph.

    Partly Cloudy

    Low: 33 °F

  • Tuesday

    Tuesday: Sunny, with a high near 48. Wind chill values between 25 and 35 early. West wind 11 to 15 mph.

    Sunny

    High: 48 °F

  • Tuesday
    Night

    Tuesday Night: Mostly cloudy, with a low around 38. Southwest wind around 10 mph.

    Mostly Cloudy

    Low: 38 °F

  • Wednesday

    Wednesday: A 20 percent chance of showers after 2pm.  Mostly sunny, with a high near 53. West wind 11 to 16 mph.

    Mostly Sunny
    then Slight
    Chance
    Showers

    High: 53 °F

  • Wednesday
    Night

    Wednesday Night: Partly cloudy, with a low around 31. West wind 14 to 17 mph, with gusts as high as 29 mph.

    Partly Cloudy

    Low: 31 °F

  • Thursday

    Thursday: Sunny, with a high near 44. Breezy.

    Sunny and
    Breezy

    High: 44 °F

  • Thursday
    Night

    Thursday Night: Mostly clear, with a low around 26.

    Mostly Clear

    Low: 26 °F

  • Friday

    Friday: Mostly sunny, with a high near 43.

    Mostly Sunny

    High: 43 °F

  • Friday
    Night

    Friday Night: A chance of rain and snow before 2am, then a chance of rain.  Mostly cloudy, with a low around 35. Chance of precipitation is 50%.

    Chance
    Rain/Snow

    Low: 35 °F

Detailed Forecast

Overnight
Partly cloudy, with a low around 33. West wind around 9 mph, with gusts as high as 22 mph.
Tuesday
Sunny, with a high near 48. Wind chill values between 25 and 35 early. West wind 11 to 15 mph.
Tuesday Night
Mostly cloudy, with a low around 38. Southwest wind around 10 mph.
Wednesday
A 20 percent chance of showers after 2pm. Mostly sunny, with a high near 53. West wind 11 to 16 mph.
Wednesday Night
Partly cloudy, with a low around 31. West wind 14 to 17 mph, with gusts as high as 29 mph.
Thursday
Sunny, with a high near 44. Breezy.
Thursday Night
Mostly clear, with a low around 26.
Friday
Mostly sunny, with a high near 43.
Friday Night
A chance of rain and snow before 2am, then a chance of rain. Mostly cloudy, with a low around 35. Chance of precipitation is 50%.
Saturday
A 50 percent chance of rain. Mostly cloudy, with a high near 49.
Saturday Night
Mostly cloudy, with a low around 33. Breezy.
Sunday
Mostly sunny, with a high near 47.
Sunday Night
Mostly cloudy, with a low around 34.
Monday
Partly sunny, with a high near 46.
Click Map For Forecast
Point Forecast:
Brentwood NY
 40.78°N 73.24°W (Elev. 66 ft)
10:33 pm EDT Mar 18, 2024
1am EDT Mar 19, 2024-6pm EDT Mar 25, 2024
 
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Additional Resources

Radar & Satellite Image

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Hourly Weather Forecast

National Digital Forecast Database