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.

Clear

72°F

22°C

Humidity 64%
Wind Speed NW 9 MPH
Barometer 30.08 in (1018.63 mb)
Dewpoint 59°F (15°C)
Visibility 10.00 mi
Last update 18 Aug 07:00 PM PDT
Extended Forecast for

Kelso WA

  • Tonight

    Tonight: Increasing clouds, with a low around 57. West wind 5 to 7 mph becoming calm in the evening.

    Low: 57 °F

    Increasing
    Clouds

  • Wednesday

    Wednesday: Cloudy through mid morning, then gradual clearing, with a high near 79. Calm wind becoming west northwest around 6 mph in the afternoon.

    High: 79 °F

    Gradual
    Clearing

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 58. West northwest wind around 6 mph becoming calm in the evening.

    Low: 58 °F

    Partly Cloudy

  • Thursday

    Thursday: Mostly sunny, with a high near 85. Light northwest wind.

    High: 85 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Increasing clouds, with a low around 60. Northwest wind around 6 mph becoming calm in the evening.

    Low: 60 °F

    Increasing
    Clouds

  • Friday

    Friday: Cloudy, then gradually becoming mostly sunny, with a high near 79.

    High: 79 °F

    Decreasing
    Clouds

  • Friday Night

    Friday Night: A 20 percent chance of rain after 11pm. Increasing clouds, with a low around 58.

    Low: 58 °F

    Slight Chance
    Rain

  • Saturday

    Saturday: A slight chance of rain before 11am. Cloudy, with a high near 71.

    High: 71 °F

    Slight Chance
    Rain then
    Mostly Cloudy

  • Saturday Night

    Saturday Night: Increasing clouds, with a low around 58.

    Low: 58 °F

    Increasing
    Clouds

Detailed Forecast

Tonight
Increasing clouds, with a low around 57. West wind 5 to 7 mph becoming calm in the evening.
Wednesday
Cloudy through mid morning, then gradual clearing, with a high near 79. Calm wind becoming west northwest around 6 mph in the afternoon.
Wednesday Night
Partly cloudy, with a low around 58. West northwest wind around 6 mph becoming calm in the evening.
Thursday
Mostly sunny, with a high near 85. Light northwest wind.
Thursday Night
Increasing clouds, with a low around 60. Northwest wind around 6 mph becoming calm in the evening.
Friday
Cloudy, then gradually becoming mostly sunny, with a high near 79.
Friday Night
A 20 percent chance of rain after 11pm. Increasing clouds, with a low around 58.
Saturday
A slight chance of rain before 11am. Cloudy, with a high near 71.
Saturday Night
Increasing clouds, with a low around 58.
Sunday
Cloudy through mid morning, then gradual clearing, with a high near 76.
Sunday Night
Mostly clear, with a low around 58.
Monday
Partly sunny, with a high near 80.
Monday Night
Increasing clouds, with a low around 58.
Tuesday
Partly sunny, with a high near 78.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Kelso WA
 46.14°N 122.92°W (Elev. 177 ft)
Last Update:
6:41 pm PDT Aug 18, 2026
Forecast Valid:
7pm PDT Aug 18, 2026-6pm PDT Aug 25, 2026
 
Forecast Discussion
 
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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