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

Atmospheric River Bringing Heavy Rain to Southern California and Heavy Snow to the Sierra Nevadas

A strong atmospheric river will continue heavy rain over southern California through Friday. The heaviest rainfall is ongoing today in the Los Angeles Basin. Flash and urban flooding is possible. A prolonged heavy snowfall has begun over the Sierra Nevada Mountains and will continue through Friday. Travel will become increasingly difficult over the passes due to snow and strong winds. Read More >

Current conditions at

Tri-Cities Airport (KPSC)

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

Overcast

40°F

4°C

Humidity 89%
Wind Speed NNW 4 MPH
Barometer 29.67 in (1004.74 mb)
Dewpoint 37°F (3°C)
Visibility 10.00 mi
Wind Chill37°F (3°C)
Last update 25 Dec 10:53 AM PST
Extended Forecast for

Kennewick WA

  • Christmas Day

    Christmas Day: A chance of rain before 1pm, then a chance of rain after 4pm. Mostly cloudy, with a high near 45. Northwest wind around 5 mph. Chance of precipitation is 30%.

    High: 45 °F

    Chance Rain

  • Tonight

    Tonight: A chance of rain before 10pm, then rain likely after 1am. Mostly cloudy, with a low around 35. Light and variable wind. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 35 °F

    Chance Rain
    then Rain
    Likely

  • Friday

    Friday: Rain likely, mainly before 10am. Mostly cloudy, with a high near 48. Southwest wind 6 to 14 mph, with gusts as high as 23 mph. Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch possible.

    High: 48 °F

    Rain Likely
    then Chance
    Rain

  • Friday Night

    Friday Night: A 30 percent chance of rain before 10pm. Snow level 2000 feet lowering to 900 feet after midnight . Partly cloudy, with a low around 34. Southwest wind 16 to 18 mph, with gusts as high as 31 mph.

    Low: 34 °F

    Chance Rain
    then Partly
    Cloudy

  • Saturday

    Saturday: Sunny, with a high near 42. Southwest wind 6 to 8 mph becoming northwest in the afternoon.

    High: 42 °F

    Sunny

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 26.

    Low: 26 °F

    Mostly Cloudy

  • Sunday

    Sunday: Mostly sunny, with a high near 36.

    High: 36 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 23.

    Low: 23 °F

    Mostly Cloudy

  • Monday

    Monday: Mostly cloudy, with a high near 34.

    High: 34 °F

    Mostly Cloudy

Detailed Forecast

Christmas Day
A chance of rain before 1pm, then a chance of rain after 4pm. Mostly cloudy, with a high near 45. Northwest wind around 5 mph. Chance of precipitation is 30%.
Tonight
A chance of rain before 10pm, then rain likely after 1am. Mostly cloudy, with a low around 35. Light and variable wind. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.
Friday
Rain likely, mainly before 10am. Mostly cloudy, with a high near 48. Southwest wind 6 to 14 mph, with gusts as high as 23 mph. Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch possible.
Friday Night
A 30 percent chance of rain before 10pm. Snow level 2000 feet lowering to 900 feet after midnight . Partly cloudy, with a low around 34. Southwest wind 16 to 18 mph, with gusts as high as 31 mph.
Saturday
Sunny, with a high near 42. Southwest wind 6 to 8 mph becoming northwest in the afternoon.
Saturday Night
Mostly cloudy, with a low around 26.
Sunday
Mostly sunny, with a high near 36.
Sunday Night
Mostly cloudy, with a low around 23.
Monday
Mostly cloudy, with a high near 34.
Monday Night
Mostly cloudy, with a low around 25.
Tuesday
Patchy fog. Otherwise, mostly cloudy, with a high near 35.
Tuesday Night
Patchy fog. Otherwise, mostly cloudy, with a low around 26.
Wednesday
Patchy fog. Otherwise, mostly cloudy, with a high near 38.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Kennewick WA
 46.22°N 119.16°W (Elev. 446 ft)
Last Update:
10:56 am PST Dec 25, 2025
Forecast Valid:
11am PST Dec 25, 2025-6pm PST Dec 31, 2025
 
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Additional Resources

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National Digital Forecast Database Weather Element Forecast

Chance of Precipitation