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

Southwest Washington Regional Airport (KKLS)

Lat: 46.11553°NLon: 122.89273°WElev: 13.0ft.

Mostly Cloudy

39°F

4°C

Humidity 95%
Wind Speed N 0 MPH
Barometer 29.48 in (998.31 mb)
Dewpoint 38°F (3°C)
Visibility 10.00 mi
Last update 25 Dec 07:56 AM PST
Extended Forecast for

Kelso WA

  • Christmas Day

    Christmas Day: Rain, mainly between 9am and 11am. High near 50. North wind around 6 mph becoming south southeast in the afternoon. Chance of precipitation is 80%.

    High: 50 °F

    Rain then
    Chance Rain

  • Tonight

    Tonight: A chance of rain between midnight and 4am, then showers likely after 4am. Increasing clouds, with a low around 38. South southeast wind around 5 mph. Chance of precipitation is 60%.

    Low: 38 °F

    Mostly Cloudy
    then Showers
    Likely

  • Friday

    Friday: Showers. Snow level 3300 feet lowering to 2200 feet in the afternoon . High near 44. South southeast wind 6 to 8 mph becoming west southwest in the afternoon. Chance of precipitation is 100%. New precipitation amounts between a tenth and quarter of an inch possible.

    High: 44 °F

    Showers

  • Friday Night

    Friday Night: Showers, mainly before 4am. Snow level 1300 feet. Low around 35. West southwest wind around 6 mph. Chance of precipitation is 90%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 35 °F

    Showers then
    Showers
    Likely

  • Saturday

    Saturday: A 30 percent chance of showers before 10am. Snow level 1200 feet. Mostly cloudy, with a high near 43. Light west wind.

    High: 43 °F

    Chance
    Showers then
    Mostly Cloudy

  • Saturday Night

    Saturday Night: Patchy fog between 10pm and 3am. Otherwise, mostly cloudy, with a low around 33.

    Low: 33 °F

    Patchy Fog

  • Sunday

    Sunday: Patchy fog before 11am. Otherwise, mostly cloudy, with a high near 43.

    High: 43 °F

    Patchy Fog
    then Mostly
    Cloudy

  • Sunday Night

    Sunday Night: Patchy fog before 3am, then patchy fog after 4am. Otherwise, mostly cloudy, with a low around 32.

    Low: 32 °F

    Patchy Fog

  • Monday

    Monday: Mostly cloudy, with a high near 46.

    High: 46 °F

    Mostly Cloudy

Detailed Forecast

Christmas Day
Rain, mainly between 9am and 11am. High near 50. North wind around 6 mph becoming south southeast in the afternoon. Chance of precipitation is 80%.
Tonight
A chance of rain between midnight and 4am, then showers likely after 4am. Increasing clouds, with a low around 38. South southeast wind around 5 mph. Chance of precipitation is 60%.
Friday
Showers. Snow level 3300 feet lowering to 2200 feet in the afternoon . High near 44. South southeast wind 6 to 8 mph becoming west southwest in the afternoon. Chance of precipitation is 100%. New precipitation amounts between a tenth and quarter of an inch possible.
Friday Night
Showers, mainly before 4am. Snow level 1300 feet. Low around 35. West southwest wind around 6 mph. Chance of precipitation is 90%. New precipitation amounts of less than a tenth of an inch possible.
Saturday
A 30 percent chance of showers before 10am. Snow level 1200 feet. Mostly cloudy, with a high near 43. Light west wind.
Saturday Night
Patchy fog between 10pm and 3am. Otherwise, mostly cloudy, with a low around 33.
Sunday
Patchy fog before 11am. Otherwise, mostly cloudy, with a high near 43.
Sunday Night
Patchy fog before 3am, then patchy fog after 4am. Otherwise, mostly cloudy, with a low around 32.
Monday
Mostly cloudy, with a high near 46.
Monday Night
Mostly cloudy, with a low around 33.
Tuesday
Mostly cloudy, with a high near 47.
Tuesday Night
A slight chance of rain. Patchy fog. Otherwise, mostly cloudy, with a low around 35.
Wednesday
A chance of rain. Patchy fog. Otherwise, mostly cloudy, with a high near 47.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Kelso WA
 46.13°N 122.88°W (Elev. 400 ft)
Last Update:
7:41 am PST Dec 25, 2025
Forecast Valid:
8am PST Dec 25, 2025-6pm PST Dec 31, 2025
 
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