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

30°F

-1°C

Humidity 86%
Wind Speed N 4 MPH
Barometer 30.44 in (1030.82 mb)
Dewpoint 27°F (-3°C)
Visibility 10.00 mi
Wind Chill26°F (-3°C)
Last update 20 Jan 04:00 AM PST
Extended Forecast for

4 Miles S Richland WA

Air Stagnation Advisory January 20, 04:21am until January 20, 04:00pm
Click here for hazard details and duration
Air Stagnation Advisory
  •  
    Air Stagnation Advisory January 20, 04:21am until January 20, 04:00pm

    NOW until 4:00pm Tue

    Air Stagnation Advisory

  • Today

    High: 36 °F

    Cloudy

  • Tonight

    Tonight: Mostly cloudy, with a low around 27. Calm wind.

    Low: 27 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: Mostly cloudy, with a high near 34. Light north wind.

    High: 34 °F

    Mostly Cloudy

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 25. Calm wind.

    Low: 25 °F

    Mostly Cloudy

  • Thursday

    Thursday: Mostly cloudy, with a high near 35. Calm wind.

    High: 35 °F

    Mostly Cloudy

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 25.

    Low: 25 °F

    Partly Cloudy

  • Friday

    Friday: Mostly sunny, with a high near 38.

    High: 38 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 24.

    Low: 24 °F

    Mostly Clear

Detailed Forecast

Today
Cloudy, with a high near 36. North wind 3 to 6 mph.
Tonight
Mostly cloudy, with a low around 27. Calm wind.
Wednesday
Mostly cloudy, with a high near 34. Light north wind.
Wednesday Night
Mostly cloudy, with a low around 25. Calm wind.
Thursday
Mostly cloudy, with a high near 35. Calm wind.
Thursday Night
Partly cloudy, with a low around 25.
Friday
Mostly sunny, with a high near 38.
Friday Night
Mostly clear, with a low around 24.
Saturday
Mostly sunny, with a high near 36.
Saturday Night
Partly cloudy, with a low around 25.
Sunday
A slight chance of rain and snow. Snow level 1200 feet rising to 1900 feet in the afternoon. Mostly cloudy, with a high near 38.
Sunday Night
A slight chance of rain and snow. Mostly cloudy, with a low around 30.
Monday
Partly sunny, with a high near 43.
Basemap Options
Click map to change the forecast location
Loading map...

ABOUT THIS FORECAST

 
Point Forecast:
4 Miles S Richland WA
 46.24°N 119.3°W (Elev. 568 ft)
3:16 am PST Jan 20, 2026
4am PST Jan 20, 2026-6pm PST Jan 26, 2026
 
Get as KML Get as XML

Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database