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Significant Snowfall for Washington Cascades and Northern Rocky Mountains

A cold front will linger for several days from the Pacific Northwest to portions of the northern Plains early this week. Cold temperatures and copious moisture will combine to produce several feet of snow into the mountain passes, with up to 4 feet of snow down to 4000 feet in the northern Rockies. Travel through mountain passes will be very difficult. Read More >

Current conditions at

Shirley, Brookhaven Airport (KHWV)

Lat: 40.82°NLon: 72.87°WElev: 82ft.

Overcast

33°F

1°C

Humidity 58%
Wind Speed Calm
Barometer 30.18 in (1022.0 mb)
Dewpoint 20°F (-7°C)
Visibility 10.00 mi
Last update 18 Dec 3:56 am EST
Extended Forecast for

Bellport NY

  • Overnight

    Overnight: Snow likely.  Cloudy, with a steady temperature around 35. East wind around 5 mph.  Chance of precipitation is 70%. Little or no snow accumulation expected.

    Snow Likely

    Low: 35 °F

  • Monday

    Monday: A chance of rain and snow before 10am, then a slight chance of rain between 10am and 11am.  Cloudy, with a high near 47. Wind chill values between 30 and 40 early. East wind around 6 mph becoming calm  in the afternoon.  Chance of precipitation is 40%.

    Chance
    Rain/Snow
    then Mostly
    Cloudy

    High: 47 °F

  • Monday
    Night

    Monday Night: Mostly cloudy, with a low around 37. Light west wind increasing to 5 to 9 mph in the evening.

    Mostly Cloudy

    Low: 37 °F

  • Tuesday

    Tuesday: Partly sunny, with a high near 53. Southwest wind 8 to 15 mph.

    Partly Sunny

    High: 53 °F

  • Tuesday
    Night

    Tuesday Night: Partly cloudy, with a low around 35. West wind 14 to 16 mph.

    Partly Cloudy

    Low: 35 °F

  • Wednesday

    Wednesday: Mostly sunny, with a high near 45.

    Mostly Sunny

    High: 45 °F

  • Wednesday
    Night

    Wednesday Night: Mostly clear, with a low around 24.

    Mostly Clear

    Low: 24 °F

  • Thursday

    Thursday: Sunny, with a high near 37.

    Sunny

    High: 37 °F

  • Thursday
    Night

    Thursday Night: Partly cloudy, with a low around 26.

    Partly Cloudy

    Low: 26 °F

Detailed Forecast

Overnight
Snow likely. Cloudy, with a steady temperature around 35. East wind around 5 mph. Chance of precipitation is 70%. Little or no snow accumulation expected.
Monday
A chance of rain and snow before 10am, then a slight chance of rain between 10am and 11am. Cloudy, with a high near 47. Wind chill values between 30 and 40 early. East wind around 6 mph becoming calm in the afternoon. Chance of precipitation is 40%.
Monday Night
Mostly cloudy, with a low around 37. Light west wind increasing to 5 to 9 mph in the evening.
Tuesday
Partly sunny, with a high near 53. Southwest wind 8 to 15 mph.
Tuesday Night
Partly cloudy, with a low around 35. West wind 14 to 16 mph.
Wednesday
Mostly sunny, with a high near 45.
Wednesday Night
Mostly clear, with a low around 24.
Thursday
Sunny, with a high near 37.
Thursday Night
Partly cloudy, with a low around 26.
Friday
Mostly cloudy, with a high near 51.
Friday Night
A 40 percent chance of showers. Cloudy, with a low around 43.
Saturday
A 50 percent chance of showers. Cloudy, with a high near 56.
Saturday Night
Mostly cloudy, with a low around 40.
Sunday
A 30 percent chance of showers. Mostly cloudy, with a high near 49.
Click Map For Forecast
Point Forecast:
Bellport NY
 40.76°N 72.95°W (Elev. 30 ft)
3:40 am EST Dec 18, 2017
4am EST Dec 18, 2017-6pm EST Dec 24, 2017
 
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Additional Resources

Radar & Satellite Image

Northeast Radar Mosaic Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database