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

Southwest Washington Regional Airport (KKLS)

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

Overcast

55°F

13°C

Humidity 79%
Wind Speed WNW 8 MPH
Barometer 29.88 in (1011.85 mb)
Dewpoint 49°F (9°C)
Visibility 10.00 mi
Last update 21 Apr 05:56 PM PDT
Extended Forecast for

Kelso WA

  • Tonight

    Tonight: Showers likely, mainly after 4am. Cloudy, with a low around 47. West northwest wind around 6 mph. Chance of precipitation is 60%.

    Low: 47 °F

    Showers
    Likely

  • Wednesday

    Wednesday: Rain, mainly before 1pm. High near 57. Southwest wind 7 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 90%. New precipitation amounts between a tenth and quarter of an inch possible.

    High: 57 °F

    Rain then
    Rain Likely

  • Wednesday Night

    Wednesday Night: A 20 percent chance of showers before 11pm. Mostly cloudy, with a low around 44. South wind 5 to 10 mph, with gusts as high as 18 mph.

    Low: 44 °F

    Slight Chance
    Showers then
    Mostly Cloudy

  • Thursday

    Thursday: Partly sunny, with a high near 63. Calm wind becoming south around 5 mph in the afternoon.

    High: 63 °F

    Partly Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 41. Northwest wind around 6 mph becoming calm in the evening.

    Low: 41 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 69.

    High: 69 °F

    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 41.

    Low: 41 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 71.

    High: 71 °F

    Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 41.

    Low: 41 °F

    Mostly Clear

Detailed Forecast

Tonight
Showers likely, mainly after 4am. Cloudy, with a low around 47. West northwest wind around 6 mph. Chance of precipitation is 60%.
Wednesday
Rain, mainly before 1pm. High near 57. Southwest wind 7 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 90%. New precipitation amounts between a tenth and quarter of an inch possible.
Wednesday Night
A 20 percent chance of showers before 11pm. Mostly cloudy, with a low around 44. South wind 5 to 10 mph, with gusts as high as 18 mph.
Thursday
Partly sunny, with a high near 63. Calm wind becoming south around 5 mph in the afternoon.
Thursday Night
Mostly clear, with a low around 41. Northwest wind around 6 mph becoming calm in the evening.
Friday
Sunny, with a high near 69.
Friday Night
Mostly clear, with a low around 41.
Saturday
Sunny, with a high near 71.
Saturday Night
Mostly clear, with a low around 41.
Sunday
Sunny, with a high near 68.
Sunday Night
Partly cloudy, with a low around 44.
Monday
Mostly sunny, with a high near 66.
Monday Night
Partly cloudy, with a low around 43.
Tuesday
Mostly sunny, with a high near 69.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Kelso WA
 46.12°N 122.91°W (Elev. 52 ft)
Last Update:
5:41 pm PDT Apr 21, 2026
Forecast Valid:
6pm PDT Apr 21, 2026-6pm PDT Apr 28, 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