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.

Fog

39°F

4°C

Humidity 100%
Wind Speed N 0 MPH
Barometer 29.67 in (1004.74 mb)
Dewpoint 39°F (4°C)
Visibility 0.24 mi
Last update 24 Dec 08:00 PM PST
Extended Forecast for

Kelso WA

  • Tonight

    Tonight: Increasing clouds, with a low around 38. Light and variable wind.

    Low: 38 °F

    Increasing
    Clouds

  • Christmas Day

    Christmas Day: Rain, mainly before noon. High near 51. North wind around 6 mph becoming southeast in the afternoon. Chance of precipitation is 80%.

    High: 51 °F

    Rain then
    Chance Rain

  • Thursday Night

    Thursday Night: A slight chance of rain before 7pm, then a chance of rain after 10pm. Mostly cloudy, with a low around 39. Southeast wind 3 to 6 mph. Chance of precipitation is 50%.

    Low: 39 °F

    Chance Rain

  • Friday

    Friday: Showers. Snow level 3000 feet lowering to 2100 feet in the afternoon . High near 46. South southeast wind 6 to 8 mph becoming west southwest in the afternoon. Chance of precipitation is 90%. New precipitation amounts between a tenth and quarter of an inch possible.

    High: 46 °F

    Showers

  • Friday Night

    Friday Night: Showers, mainly before 10pm. Snow level 1500 feet. Low around 36. West southwest wind around 6 mph. Chance of precipitation is 80%.

    Low: 36 °F

    Showers then
    Chance
    Showers

  • Saturday

    Saturday: A slight chance of rain and snow showers before 10am. Snow level 1100 feet rising to 1700 feet in the afternoon. Mostly cloudy, with a high near 45. Chance of precipitation is 20%.

    High: 45 °F

    Slight Chance
    Rain/Snow
    then Mostly
    Cloudy

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 34.

    Low: 34 °F

    Mostly Cloudy

  • Sunday

    Sunday: Mostly cloudy, with a high near 45.

    High: 45 °F

    Mostly Cloudy

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 32.

    Low: 32 °F

    Mostly Cloudy

Detailed Forecast

Tonight
Increasing clouds, with a low around 38. Light and variable wind.
Christmas Day
Rain, mainly before noon. High near 51. North wind around 6 mph becoming southeast in the afternoon. Chance of precipitation is 80%.
Thursday Night
A slight chance of rain before 7pm, then a chance of rain after 10pm. Mostly cloudy, with a low around 39. Southeast wind 3 to 6 mph. Chance of precipitation is 50%.
Friday
Showers. Snow level 3000 feet lowering to 2100 feet in the afternoon . High near 46. South southeast wind 6 to 8 mph becoming west southwest in the afternoon. Chance of precipitation is 90%. New precipitation amounts between a tenth and quarter of an inch possible.
Friday Night
Showers, mainly before 10pm. Snow level 1500 feet. Low around 36. West southwest wind around 6 mph. Chance of precipitation is 80%.
Saturday
A slight chance of rain and snow showers before 10am. Snow level 1100 feet rising to 1700 feet in the afternoon. Mostly cloudy, with a high near 45. Chance of precipitation is 20%.
Saturday Night
Mostly cloudy, with a low around 34.
Sunday
Mostly cloudy, with a high near 45.
Sunday Night
Mostly cloudy, with a low around 32.
Monday
Partly sunny, with a high near 47.
Monday Night
Partly cloudy, with a low around 33.
Tuesday
Partly sunny, with a high near 48.
Tuesday Night
Partly cloudy, with a low around 35.
Wednesday
A chance of rain. Partly sunny, with a high near 49.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Kelso WA
 46.1°N 122.9°W (Elev. 95 ft)
Last Update:
7:41 pm PST Dec 24, 2025
Forecast Valid:
8pm PST Dec 24, 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