Tracking Late December Winter Storm Expected to Impact the Northern Plains through the Northeast U.S.

A winter storm system will rapidly intensify over the Midwest on Sunday and track through the Great Lakes on Monday. Periods of heavy snow are anticipated across the Upper Great Lakes late Sunday and continuing into Monday. At least 1/10 inch of ice accumulation is expected from a wintry mix across much of the interior Northeast U.S. starting Sunday afternoon. Read More >

Current conditions at

Tri-Cities Airport (KPSC)

Lat: 46.26955°NLon: 119.11813°WElev: 397.0ft.

Overcast

36°F

2°C

Humidity 74%
Wind Speed NNW 5 MPH
Barometer 30.02 in (1016.59 mb)
Dewpoint 28°F (-2°C)
Visibility 10.00 mi
Wind Chill32°F (0°C)
Last update 27 Dec 05:55 AM PST
Extended Forecast for

Wallula WA

  • Today

    Today: Mostly sunny, with a high near 41. Breezy, with a southwest wind 21 to 26 mph becoming northwest 9 to 14 mph in the afternoon. Winds could gust as high as 33 mph.

    High: 41 °F

    Mostly Sunny
    and Breezy
    then Sunny

  • Tonight

    Tonight: Mostly clear during the early evening, then becoming mostly cloudy, with a low around 30. East wind around 5 mph becoming light and variable  after midnight.

    Low: 30 °F

    Mostly Cloudy

  • Sunday

    Sunday: Mostly sunny, with a high near 35. North wind 3 to 5 mph.

    High: 35 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 28. Light north wind.

    Low: 28 °F

    Mostly Cloudy

  • Monday

    Monday: Partly sunny, with a high near 33. North wind 3 to 5 mph.

    High: 33 °F

    Partly Sunny

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 27.

    Low: 27 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: Patchy fog before 10am.  Otherwise, mostly cloudy, with a high near 33.

    High: 33 °F

    Patchy Fog
    then Partly
    Sunny

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 27.

    Low: 27 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: Partly sunny, with a high near 34.

    High: 34 °F

    Partly Sunny

Detailed Forecast

Today
Mostly sunny, with a high near 41. Breezy, with a southwest wind 21 to 26 mph becoming northwest 9 to 14 mph in the afternoon. Winds could gust as high as 33 mph.
Tonight
Mostly clear during the early evening, then becoming mostly cloudy, with a low around 30. East wind around 5 mph becoming light and variable after midnight.
Sunday
Mostly sunny, with a high near 35. North wind 3 to 5 mph.
Sunday Night
Mostly cloudy, with a low around 28. Light north wind.
Monday
Partly sunny, with a high near 33. North wind 3 to 5 mph.
Monday Night
Mostly cloudy, with a low around 27.
Tuesday
Patchy fog before 10am. Otherwise, mostly cloudy, with a high near 33.
Tuesday Night
Mostly cloudy, with a low around 27.
Wednesday
Partly sunny, with a high near 34.
Wednesday Night
Mostly cloudy, with a low around 30.
New Year's Day
A slight chance of rain. Mostly cloudy, with a high near 36.
Thursday Night
A chance of rain. Mostly cloudy, with a low around 34.
Friday
A chance of rain. Mostly cloudy, with a high near 44.
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ABOUT THIS FORECAST

 
Point Forecast:
Wallula WA
 46.07°N 118.91°W (Elev. 338 ft)
4:20 am PST Dec 27, 2025
6am PST Dec 27, 2025-6pm PST Jan 2, 2026
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database