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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.

Partly Cloudy

35°F

2°C

Humidity 94%
Wind Speed N 0 MPH
Barometer 30.45 in (1031.16 mb)
Dewpoint 34°F (1°C)
Visibility 7.00 mi
Last update 11 Jan 10:15 AM PST
Extended Forecast for

Prosser WA

  • Today

    Today: Partly sunny, with a high near 49. Light south wind.

    High: 49 °F

    Partly Sunny

  • Tonight

    Tonight: Mostly cloudy, with a low around 36. Light south wind.

    Low: 36 °F

    Mostly Cloudy

  • Monday

    Monday: Partly sunny, with a high near 55. South wind around 6 mph.

    High: 55 °F

    Partly Sunny

  • Monday Night

    Monday Night: Patchy fog after 1am. Otherwise, partly cloudy, with a low around 36. Light west wind.

    Low: 36 °F

    Partly Cloudy
    then Patchy
    Fog

  • Tuesday

    Tuesday: Patchy fog before 1pm. Otherwise, partly sunny, with a high near 50. Calm wind.

    High: 50 °F

    Patchy Fog

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 32.

    Low: 32 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Mostly sunny, with a high near 48.

    High: 48 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 30.

    Low: 30 °F

    Partly Cloudy

  • Thursday

    Thursday: Mostly sunny, with a high near 47.

    High: 47 °F

    Mostly Sunny

Detailed Forecast

Today
Partly sunny, with a high near 49. Light south wind.
Tonight
Mostly cloudy, with a low around 36. Light south wind.
Monday
Partly sunny, with a high near 55. South wind around 6 mph.
Monday Night
Patchy fog after 1am. Otherwise, partly cloudy, with a low around 36. Light west wind.
Tuesday
Patchy fog before 1pm. Otherwise, partly sunny, with a high near 50. Calm wind.
Tuesday Night
Partly cloudy, with a low around 32.
Wednesday
Mostly sunny, with a high near 48.
Wednesday Night
Partly cloudy, with a low around 30.
Thursday
Mostly sunny, with a high near 47.
Thursday Night
Partly cloudy, with a low around 28.
Friday
Mostly sunny, with a high near 44.
Friday Night
Partly cloudy, with a low around 26.
Saturday
Mostly sunny, with a high near 42.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Prosser WA
 46.22°N 119.79°W (Elev. 715 ft)
Last Update:
9:15 am PST Jan 11, 2026
Forecast Valid:
10am PST Jan 11, 2026-6pm PST Jan 17, 2026
 
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Additional Resources

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Chance of Precipitation