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

Lake Effect Snow through Friday; Heavy Rain, Thunderstorms and Mountain Snow in California

Periods of moderate to heavy lake effect snow will continue through Friday downwind of Lake Erie and Ontario. Several additional inches of accumulating snow are expected. A Pacific storm will bring heavy rain and mountain snow across California, the Southwest and Intermountain West today. Isolated severe thunderstorms and scattered flash flooding is possible across parts of southern California. Read More >

Hazardous Weather Conditions

Current conditions at

Tri-Cities Airport (KPSC)

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

unknown precip,mist

28°F

-2°C

Humidity 100%
Wind Speed N 0 MPH
Barometer 29.98 in (1015.24 mb)
Dewpoint 28°F (-2°C)
Visibility 4.00 mi
Last update 01 Jan 12:00 PM PST
Extended Forecast for

Richland WA

Winter Weather Advisory until January 2, 04:00am
Click here for hazard details and duration
Winter Weather Advisory
  •  
    Winter Weather Advisory until January 2, 04:00am

    NOW until 4:00am Fri

    Winter Weather Advisory

  • New Year's Day

    High: 32 °F

    Slight Chance
    Rain

  • Tonight

    Tonight: A 20 percent chance of rain. Cloudy, with a temperature rising to around 34 by 5am. Calm wind.

    Low: 31 °F⇑

    Slight Chance
    Rain

  • Friday

    Friday: A 20 percent chance of rain. Mostly cloudy, with a high near 43. Light east wind.

    High: 43 °F

    Slight Chance
    Rain then
    Mostly Cloudy

  • Friday Night

    Friday Night: A 10 percent chance of rain. Mostly cloudy, with a low around 33. Northwest wind around 6 mph.

    Low: 33 °F

    Slight Chance
    Rain

  • Saturday

    Saturday: A 20 percent chance of rain. Mostly cloudy, with a high near 45. Light north wind.

    High: 45 °F

    Slight Chance
    Rain

  • Saturday Night

    Saturday Night: A 20 percent chance of rain. Mostly cloudy, with a low around 37.

    Low: 37 °F

    Slight Chance
    Rain

  • Sunday

    Sunday: A 10 percent chance of rain. Mostly cloudy, with a high near 50.

    High: 50 °F

    Slight Chance
    Rain

  • Sunday Night

    Sunday Night: A 20 percent chance of rain. Mostly cloudy, with a low around 36.

    Low: 36 °F

    Slight Chance
    Rain

Detailed Forecast

New Year's Day
A 20 percent chance of rain. Cloudy, with a high near 32. Calm wind.
Tonight
A 20 percent chance of rain. Cloudy, with a temperature rising to around 34 by 5am. Calm wind.
Friday
A 20 percent chance of rain. Mostly cloudy, with a high near 43. Light east wind.
Friday Night
A 10 percent chance of rain. Mostly cloudy, with a low around 33. Northwest wind around 6 mph.
Saturday
A 20 percent chance of rain. Mostly cloudy, with a high near 45. Light north wind.
Saturday Night
A 20 percent chance of rain. Mostly cloudy, with a low around 37.
Sunday
A 10 percent chance of rain. Mostly cloudy, with a high near 50.
Sunday Night
A 20 percent chance of rain. Mostly cloudy, with a low around 36.
Monday
A 10 percent chance of rain. Partly sunny, with a high near 48.
Monday Night
A slight chance of rain. Partly cloudy, with a low around 33.
Tuesday
A slight chance of rain. Mostly cloudy, with a high near 47.
Tuesday Night
A slight chance of rain. Mostly cloudy, with a low around 37.
Wednesday
A slight chance of rain. Partly sunny, with a high near 48.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Richland WA
 46.3°N 119.31°W (Elev. 400 ft)
Last Update:
12:12 pm PST Jan 1, 2026
Forecast Valid:
12pm PST Jan 1, 2026-6pm PST Jan 7, 2026
 
Forecast Discussion
 
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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

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation