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Fire Weather Threats Continue in the West; Wintry Weather from Upper Midwest to New England

High pressure in the west continues to send weather systems into the Great Basin, and this is keeping fire weather threats elevated to critical across southern California. A series of weather systems will bring widespread snow from the Upper Midwest to the Northeast U.S., with locally heavier snow amounts on the lee side of the Great Lakes. Read More >

Current conditions at

Islip, Long Island Mac Arthur Airport (KISP)

Lat: 40.79°NLon: 73.1°WElev: 98ft.

Mostly Cloudy

30°F

-1°C

Humidity 64%
Wind Speed NW 12 mph
Barometer 29.73 in (1006.8 mb)
Dewpoint 19°F (-7°C)
Visibility 10.00 mi
Wind Chill20°F (-7°C)
Last update 14 Dec 12:56 pm EST
Extended Forecast for

Stony Brook NY

  • This
    Afternoon

    This Afternoon: Mostly sunny, with a high near 35. Wind chill values between 20 and 25. Northwest wind 14 to 16 mph.

    Mostly Sunny

    High: 35 °F

  • Tonight

    Tonight: Mostly clear, with a low around 17. Wind chill values between 10 and 15. Northwest wind 6 to 16 mph.

    Mostly Clear

    Low: 17 °F

  • Friday

    Friday: Mostly cloudy, with a high near 32. Wind chill values between 10 and 20. West wind 5 to 8 mph.

    Mostly Cloudy

    High: 32 °F

  • Friday
    Night

    Friday Night: A 30 percent chance of snow, mainly before midnight.  Cloudy, then gradually becoming partly cloudy, with a steady temperature around 29. Wind chill values between 15 and 20. West wind 6 to 13 mph.

    Chance Snow

    Low: 29 °F

  • Saturday

    Saturday: Mostly sunny, with a high near 37. West wind 14 to 18 mph, with gusts as high as 30 mph.

    Mostly Sunny

    High: 37 °F

  • Saturday
    Night

    Saturday Night: Mostly clear, with a low around 25.

    Mostly Clear

    Low: 25 °F

  • Sunday

    Sunday: Mostly sunny, with a high near 38.

    Mostly Sunny

    High: 38 °F

  • Sunday
    Night

    Sunday Night: A chance of snow before 8pm, then a chance of rain and snow between 8pm and 11pm, then a chance of rain after 11pm.  Mostly cloudy, with a low around 33. Chance of precipitation is 30%.

    Chance
    Rain/Snow
    then Chance
    Rain

    Low: 33 °F

  • Monday

    Monday: Partly sunny, with a high near 47.

    Partly Sunny

    High: 47 °F

Detailed Forecast

This Afternoon
Mostly sunny, with a high near 35. Wind chill values between 20 and 25. Northwest wind 14 to 16 mph.
Tonight
Mostly clear, with a low around 17. Wind chill values between 10 and 15. Northwest wind 6 to 16 mph.
Friday
Mostly cloudy, with a high near 32. Wind chill values between 10 and 20. West wind 5 to 8 mph.
Friday Night
A 30 percent chance of snow, mainly before midnight. Cloudy, then gradually becoming partly cloudy, with a steady temperature around 29. Wind chill values between 15 and 20. West wind 6 to 13 mph.
Saturday
Mostly sunny, with a high near 37. West wind 14 to 18 mph, with gusts as high as 30 mph.
Saturday Night
Mostly clear, with a low around 25.
Sunday
Mostly sunny, with a high near 38.
Sunday Night
A chance of snow before 8pm, then a chance of rain and snow between 8pm and 11pm, then a chance of rain after 11pm. Mostly cloudy, with a low around 33. Chance of precipitation is 30%.
Monday
Partly sunny, with a high near 47.
Monday Night
Mostly cloudy, with a low around 36.
Tuesday
Partly sunny, with a high near 46.
Tuesday Night
Mostly cloudy, with a low around 34.
Wednesday
Mostly sunny, with a high near 41. Breezy.
Click Map For Forecast
Point Forecast:
Stony Brook NY
 40.92°N 73.12°W (Elev. 112 ft)
11:51 am EST Dec 14, 2017
1pm EST Dec 14, 2017-6pm EST Dec 20, 2017
 
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Additional Resources

Radar & Satellite Image

Northeast Radar Mosaic Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database