Vigorous System Impacting the Northwest; Large System To Affect East

A potent storm system is delivering heavy rainfall, strong winds, rough surf and beach erosion along the Pacific Northwest coast with mountain snow inland. Expect a couple more systems to arrive late week into the weekend. Meanwhile, another developing large scale system will deliver a heavy rain and renewed flood threat to much of the East late Wednesday through Friday, which may impact travel. Read More >

Current conditions at

Islip, Long Island Mac Arthur Airport (KISP)

Lat: 40.79°NLon: 73.1°WElev: 98ft.

A Few Clouds

28°F

-2°C

Humidity 60%
Wind Speed NW 9 G 21 mph
Barometer 30.11 in (1019.7 mb)
Dewpoint 16°F (-9°C)
Visibility 10.00 mi
Wind Chill19°F (-7°C)
Last update 18 Dec 9:56 pm EST
Extended Forecast for

West Sayville NY

  • Tonight

    Tonight: Mostly clear, with a low around 24. Wind chill values between 15 and 20. Northwest wind 8 to 13 mph becoming light  after midnight.

    Mostly Clear

    Low: 24 °F

  • Wednesday

    Wednesday: Sunny, with a high near 41. Wind chill values between 20 and 30. Southwest wind 5 to 10 mph.

    Sunny

    High: 41 °F

  • Wednesday
    Night

    Wednesday Night: Mostly clear, with a low around 33. Southwest wind 6 to 8 mph.

    Mostly Clear

    Low: 33 °F

  • Thursday

    Thursday: Increasing clouds, with a high near 49. Wind chill values between 30 and 40 early. Light and variable wind becoming southeast around 5 mph in the afternoon.

    Increasing
    Clouds

    High: 49 °F

  • Thursday
    Night

    Thursday Night: Rain.  Temperature rising to around 54 by 5am. Breezy, with a southeast wind 6 to 11 mph increasing to 17 to 22 mph after midnight. Winds could gust as high as 32 mph.  Chance of precipitation is 90%. New precipitation amounts between three quarters and one inch possible.

    Rain and
    Breezy

    Low: 47 °F

  • Friday

    Friday: Rain before noon, then showers after noon.  High near 58. Breezy.  Chance of precipitation is 90%. New precipitation amounts between three quarters and one inch possible.

    Rain and
    Breezy

    High: 58 °F

  • Friday
    Night

    Friday Night: Showers likely, mainly before midnight.  Mostly cloudy, with a low around 48. Chance of precipitation is 60%.

    Showers
    Likely

    Low: 48 °F

  • Saturday

    Saturday: Partly sunny, with a high near 49. Breezy.

    Partly Sunny
    then Partly
    Sunny and
    Breezy

    High: 49 °F

  • Saturday
    Night

    Saturday Night: Partly cloudy, with a low around 33.

    Partly Cloudy

    Low: 33 °F

Detailed Forecast

Tonight
Mostly clear, with a low around 24. Wind chill values between 15 and 20. Northwest wind 8 to 13 mph becoming light after midnight.
Wednesday
Sunny, with a high near 41. Wind chill values between 20 and 30. Southwest wind 5 to 10 mph.
Wednesday Night
Mostly clear, with a low around 33. Southwest wind 6 to 8 mph.
Thursday
Increasing clouds, with a high near 49. Wind chill values between 30 and 40 early. Light and variable wind becoming southeast around 5 mph in the afternoon.
Thursday Night
Rain. Temperature rising to around 54 by 5am. Breezy, with a southeast wind 6 to 11 mph increasing to 17 to 22 mph after midnight. Winds could gust as high as 32 mph. Chance of precipitation is 90%. New precipitation amounts between three quarters and one inch possible.
Friday
Rain before noon, then showers after noon. High near 58. Breezy. Chance of precipitation is 90%. New precipitation amounts between three quarters and one inch possible.
Friday Night
Showers likely, mainly before midnight. Mostly cloudy, with a low around 48. Chance of precipitation is 60%.
Saturday
Partly sunny, with a high near 49. Breezy.
Saturday Night
Partly cloudy, with a low around 33.
Sunday
Sunny, with a high near 42.
Sunday Night
Partly cloudy, with a low around 33.
Monday
Mostly sunny, with a high near 41.
Monday Night
Mostly clear, with a low around 30.
Christmas Day
Mostly sunny, with a high near 40.
Click Map For Forecast
Point Forecast:
West Sayville NY
 40.74°N 73.1°W (Elev. 30 ft)
10:08 pm EST Dec 18, 2018
10pm EST Dec 18, 2018-6pm EST Dec 25, 2018
 
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Additional Resources

Radar & Satellite Image

Northeast Radar Mosaic Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database