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

31°F

-1°C

Humidity 92%
Wind Speed NW 3 MPH
Barometer 29.94 in (1013.89 mb)
Dewpoint 29°F (-2°C)
Visibility 6.00 mi
Last update 01 Jan 04:53 PM PST
Extended Forecast for

Pasco WA

Winter Weather Advisory January 1, 05:05pm until January 2, 04:00am
Click here for hazard details and duration
Winter Weather Advisory
  •  
    Winter Weather Advisory January 1, 05:05pm until January 2, 04:00am

    NOW until 4:00am Fri

    Winter Weather Advisory

  • New Year's Day

    High: 31 °F

    Wintry Mix
    Likely

  • Tonight

    Tonight: Rain, snow, and freezing rain likely before 7pm, then rain or freezing rain. Temperature rising to around 34 by 5am. Calm wind. Chance of precipitation is 80%. New ice accumulation of less than a 0.1 of an inch possible. Little or no snow accumulation expected.

    Low: 31 °F⇑

    Wintry Mix

  • Friday

    Friday: A 30 percent chance of rain before 10am. Mostly cloudy, with a high near 42. Light east wind.

    High: 42 °F

    Chance Rain
    then Mostly
    Cloudy

  • Friday Night

    Friday Night: A 30 percent chance of rain after 4am. Mostly cloudy, with a low around 33. Northwest wind 3 to 5 mph.

    Low: 33 °F

    Mostly Cloudy
    then Chance
    Rain

  • Saturday

    Saturday: A 50 percent chance of rain, mainly after 4pm. Mostly cloudy, with a high near 45. Light and variable wind. New precipitation amounts of less than a tenth of an inch possible.

    High: 45 °F

    Chance Rain

  • Saturday Night

    Saturday Night: A 40 percent chance of rain, mainly before 10pm. Mostly cloudy, with a low around 38.

    Low: 38 °F

    Chance Rain

  • Sunday

    Sunday: A slight chance of rain before 10am, then a chance of rain after 4pm. Mostly cloudy, with a high near 51. Chance of precipitation is 30%.

    High: 51 °F

    Chance Rain

  • Sunday Night

    Sunday Night: A 30 percent chance of rain, mainly before 10pm. Mostly cloudy, with a low around 37.

    Low: 37 °F

    Chance Rain

Detailed Forecast

New Year's Day
Rain, snow, and freezing rain likely. Cloudy, with a high near 31. Calm wind. Chance of precipitation is 70%. Total daytime ice accumulation of less than a 0.1 of an inch possible. Little or no snow accumulation expected.
Tonight
Rain, snow, and freezing rain likely before 7pm, then rain or freezing rain. Temperature rising to around 34 by 5am. Calm wind. Chance of precipitation is 80%. New ice accumulation of less than a 0.1 of an inch possible. Little or no snow accumulation expected.
Friday
A 30 percent chance of rain before 10am. Mostly cloudy, with a high near 42. Light east wind.
Friday Night
A 30 percent chance of rain after 4am. Mostly cloudy, with a low around 33. Northwest wind 3 to 5 mph.
Saturday
A 50 percent chance of rain, mainly after 4pm. Mostly cloudy, with a high near 45. Light and variable wind. New precipitation amounts of less than a tenth of an inch possible.
Saturday Night
A 40 percent chance of rain, mainly before 10pm. Mostly cloudy, with a low around 38.
Sunday
A slight chance of rain before 10am, then a chance of rain after 4pm. Mostly cloudy, with a high near 51. Chance of precipitation is 30%.
Sunday Night
A 30 percent chance of rain, mainly before 10pm. Mostly cloudy, with a low around 37.
Monday
Partly sunny, with a high near 48.
Monday Night
Partly cloudy, with a low around 34.
Tuesday
A slight chance of rain. Mostly cloudy, with a high near 47.
Tuesday Night
A chance of rain. Mostly cloudy, with a low around 38.
Wednesday
A slight chance of rain. Partly sunny, with a high near 48.
Wednesday Night
A slight chance of rain. Mostly cloudy, with a low around 31.
Thursday
A slight chance of rain and snow. Snow level 1400 feet. Partly sunny, with a high near 44.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Pasco WA
 46.24°N 119.11°W (Elev. 397 ft)
Last Update:
4:00 pm PST Jan 1, 2026
Forecast Valid:
5pm PST Jan 1, 2026-6pm PST Jan 8, 2026
 
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Additional Resources

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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