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

Lake Effect Snow in the Lower Great Lakes; Unsettled Pattern in the Pacific Northwest

Lake-effect snow will continue downwind of Lakes Erie and Ontario through Friday. Lake Effect Snow Warnings have been issued. In the Western U.S., rain and higher elevation snow will continue over the Great Basin through Friday. A front will move over the Pacific Northwest this afternoon and produce light rain and higher elevation snow over the Cascades through Saturday. Read More >

Hazardous Weather Conditions

Current conditions at

Tri-Cities Airport (KPSC)

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

Fog

32°F

0°C

Humidity 92%
Wind Speed N 0 MPH
Barometer 30.32 in (1026.75 mb)
Dewpoint 30°F (-1°C)
Visibility 0.25 mi
Last update 12 Feb 10:20 AM PST
Extended Forecast for

Wallula WA

Dense Fog Advisory February 12, 10:32am until February 12, 01:00pm
Click here for hazard details and duration
Dense Fog Advisory
  •  
    Dense Fog Advisory February 12, 10:32am until February 12, 01:00pm

    NOW until 1:00pm Thu

    Dense Fog Advisory

  • Today

    High: 49 °F

    Mostly Cloudy

  • Tonight

    Tonight: Cloudy during the early evening, then gradual clearing, with a low around 39. Southwest wind around 7 mph.

    Low: 39 °F

    Gradual
    Clearing

  • Friday

    Friday: Mostly cloudy, with a high near 50. West wind 7 to 9 mph.

    High: 50 °F

    Mostly Cloudy

  • Friday Night

    Friday Night: A 20 percent chance of rain before 4am. Cloudy, with a low around 42. South wind around 7 mph.

    Low: 42 °F

    Slight Chance
    Rain

  • Saturday

    Saturday: A 20 percent chance of rain after 10am. Cloudy, with a high near 50. West wind around 8 mph.

    High: 50 °F

    Slight Chance
    Rain

  • Saturday Night

    Saturday Night: A 50 percent chance of rain, mainly before 4am. Cloudy, with a low around 41.

    Low: 41 °F

    Chance Rain

  • Sunday

    Sunday: A 20 percent chance of rain before 10am. Mostly cloudy, with a high near 48.

    High: 48 °F

    Slight Chance
    Rain then
    Mostly Cloudy

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 37.

    Low: 37 °F

    Mostly Cloudy

Detailed Forecast

Today
Mostly cloudy, with a high near 49. Southwest wind around 6 mph.
Tonight
Cloudy during the early evening, then gradual clearing, with a low around 39. Southwest wind around 7 mph.
Friday
Mostly cloudy, with a high near 50. West wind 7 to 9 mph.
Friday Night
A 20 percent chance of rain before 4am. Cloudy, with a low around 42. South wind around 7 mph.
Saturday
A 20 percent chance of rain after 10am. Cloudy, with a high near 50. West wind around 8 mph.
Saturday Night
A 50 percent chance of rain, mainly before 4am. Cloudy, with a low around 41.
Sunday
A 20 percent chance of rain before 10am. Mostly cloudy, with a high near 48.
Sunday Night
Mostly cloudy, with a low around 37.
Washington's Birthday
A 20 percent chance of rain after 10am. Mostly cloudy, with a high near 49.
Monday Night
A chance of rain. Mostly cloudy, with a low around 39.
Tuesday
A chance of rain. Partly sunny, with a high near 48.
Tuesday Night
A chance of rain. Mostly cloudy, with a low around 41.
Wednesday
A chance of rain. Mostly cloudy, with a high near 52.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Wallula WA
 46.07°N 118.91°W (Elev. 338 ft)
Last Update:
9:46 am PST Feb 12, 2026
Forecast Valid:
10am PST Feb 12, 2026-6pm PST Feb 18, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

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Hourly Weather Forecast

National Digital Forecast Database

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation