Lake-effect Snow and Whiteout Conditions in the Great Lakes Region; Below-average Temperatures in the East

Heavy lake-effect and lake-enhanced snow will persist downwind of the Great Lakes and produce some whiteout conditions that could cause difficult travel conditions. A coastal low will produce moderate to heavy snow over parts of southern and eastern New England into the afternoon. Below average temperatures are expected across the eastern U.S., particularly with chilly morning temperatures. Read More >

Current conditions at

Tri-Cities Airport (KPSC)

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

Overcast

33°F

1°C

Humidity 77%
Wind Speed SW 3 MPH
Barometer 30.62 in (1036.91 mb)
Dewpoint 27°F (-3°C)
Visibility 10.00 mi
Last update 19 Jan 08:53 AM PST
Extended Forecast for

Wallula WA

Air Stagnation Advisory January 19, 09:05am until January 20, 04:00pm
Click here for hazard details and duration
Air Stagnation Advisory
  •  
    Air Stagnation Advisory January 19, 09:05am until January 20, 04:00pm

    NOW until 4:00pm Tue

    Air Stagnation Advisory

  • M.L.King Day

    High: 38 °F

    Mostly Cloudy

  • Tonight

    Tonight: Mostly cloudy, with a low around 29. Calm wind.

    Low: 29 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: Mostly cloudy, with a high near 37. North wind around 6 mph.

    High: 37 °F

    Mostly Cloudy

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 29. Calm wind.

    Low: 29 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Partly sunny, with a high near 35. Calm wind becoming north around 5 mph in the afternoon.

    High: 35 °F

    Partly Sunny

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 28.

    Low: 28 °F

    Mostly Cloudy

  • Thursday

    Thursday: Partly sunny, with a high near 37.

    High: 37 °F

    Partly Sunny

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 28.

    Low: 28 °F

    Mostly Cloudy

Detailed Forecast

M.L.King Day
Mostly cloudy, with a high near 38. Light north wind.
Tonight
Mostly cloudy, with a low around 29. Calm wind.
Tuesday
Mostly cloudy, with a high near 37. North wind around 6 mph.
Tuesday Night
Partly cloudy, with a low around 29. Calm wind.
Wednesday
Partly sunny, with a high near 35. Calm wind becoming north around 5 mph in the afternoon.
Wednesday Night
Mostly cloudy, with a low around 28.
Thursday
Partly sunny, with a high near 37.
Thursday Night
Mostly cloudy, with a low around 28.
Friday
Partly sunny, with a high near 37.
Friday Night
Partly cloudy, with a low around 29.
Saturday
Mostly sunny, with a high near 39.
Saturday Night
A slight chance of rain and snow. Mostly cloudy, with a low around 32.
Sunday
A slight chance of rain and snow. Mostly cloudy, with a high near 42.
Basemap Options
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ABOUT THIS FORECAST

 
Point Forecast:
Wallula WA
 46.07°N 118.91°W (Elev. 338 ft)
8:33 am PST Jan 19, 2026
9am PST Jan 19, 2026-6pm PST Jan 25, 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