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

Lingering Winter Weather in Interior New England; Snow Squalls Developing Downwind of the Lower Great Lakes

A wintry mix will continue in interior New England through tonight as a coastal storm quickly passes to the east. Heavy snow is expected in northern Maine, with a coating of ice expected for much of interior New England. Behind this storm system, lake effect snow and snow squalls will develop from the Ohio Valley to interior New England through Monday. Read More >

Current conditions at

Sunnyside Municipal Airport (K1S5)

Lat: 46.3271°NLon: 119.9704°WElev: 768.0ft.

Mostly Cloudy

41°F

5°C

Humidity 80%
Wind Speed N 0 MPH
Barometer 30.39 in (1029.12 mb)
Dewpoint 35°F (2°C)
Visibility 10.00 mi
Last update 11 Jan 01:35 PM PST
Extended Forecast for

Prosser WA

  • This Afternoon

    This Afternoon: Mostly cloudy, with a high near 49. Southwest wind around 7 mph.

    High: 49 °F

    Mostly Cloudy

  • Tonight

    Tonight: Mostly cloudy, with a low around 37. South wind around 6 mph.

    Low: 37 °F

    Mostly Cloudy

  • Monday

    Monday: Partly sunny, with a high near 57. South wind 7 to 10 mph.

    High: 57 °F

    Partly Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 37. Southwest wind around 5 mph becoming calm in the evening.

    Low: 37 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Patchy fog before 10am. Otherwise, partly sunny, with a high near 51. Calm wind.

    High: 51 °F

    Patchy Fog
    then Partly
    Sunny

  • Tuesday Night

    Tuesday Night: Areas of fog after 10pm. Otherwise, partly cloudy, with a low around 33.

    Low: 33 °F

    Areas Fog

  • Wednesday

    Wednesday: Areas of fog before 10am. Otherwise, mostly sunny, with a high near 49.

    High: 49 °F

    Areas Fog
    then Mostly
    Sunny

  • Wednesday Night

    Wednesday Night: Areas of fog after 10pm. Otherwise, partly cloudy, with a low around 31.

    Low: 31 °F

    Areas Fog

  • Thursday

    Thursday: Areas of fog before 10am. Otherwise, mostly sunny, with a high near 47.

    High: 47 °F

    Areas Fog
    then Mostly
    Sunny

Detailed Forecast

This Afternoon
Mostly cloudy, with a high near 49. Southwest wind around 7 mph.
Tonight
Mostly cloudy, with a low around 37. South wind around 6 mph.
Monday
Partly sunny, with a high near 57. South wind 7 to 10 mph.
Monday Night
Partly cloudy, with a low around 37. Southwest wind around 5 mph becoming calm in the evening.
Tuesday
Patchy fog before 10am. Otherwise, partly sunny, with a high near 51. Calm wind.
Tuesday Night
Areas of fog after 10pm. Otherwise, partly cloudy, with a low around 33.
Wednesday
Areas of fog before 10am. Otherwise, mostly sunny, with a high near 49.
Wednesday Night
Areas of fog after 10pm. Otherwise, partly cloudy, with a low around 31.
Thursday
Areas of fog before 10am. Otherwise, mostly sunny, with a high near 47.
Thursday Night
Areas of fog after 10pm. Otherwise, partly cloudy, with a low around 29.
Friday
Areas of fog. Otherwise, mostly sunny, with a high near 44.
Friday Night
Areas of fog. Otherwise, partly cloudy, with a low around 27.
Saturday
Areas of fog. Otherwise, mostly sunny, with a high near 42.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Prosser WA
 46.2°N 119.78°W (Elev. 646 ft)
Last Update:
1:30 pm PST Jan 11, 2026
Forecast Valid:
1pm PST Jan 11, 2026-6pm PST Jan 17, 2026
 
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