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

54°F

12°C

Humidity 93%
Wind Speed NW 3 MPH
Barometer 30.19 in (1022.35 mb)
Dewpoint 52°F (11°C)
Visibility 10.00 mi
Last update 19 Sep 01:00 AM PDT
Extended Forecast for

Kelso WA

  • Overnight

    Overnight: Patchy fog. Otherwise, mostly cloudy, with a low around 51. Calm wind.

    Low: 51 °F

    Patchy Fog

  • Saturday

    Saturday: Patchy fog before 9am. Otherwise, mostly cloudy, then gradually becoming sunny, with a high near 77. Calm wind becoming northwest around 5 mph in the afternoon.

    High: 77 °F

    Patchy Fog
    then Mostly
    Sunny

  • Saturday Night

    Saturday Night: Increasing clouds, with a low around 51. Light northwest wind.

    Low: 51 °F

    Increasing
    Clouds

  • Sunday

    Sunday: Mostly sunny, with a high near 78. North northwest wind 3 to 7 mph.

    High: 78 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 51. North northwest wind 5 to 7 mph.

    Low: 51 °F

    Mostly Clear

  • Monday

    Monday: Mostly sunny, with a high near 75.

    High: 75 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 52.

    Low: 52 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Partly sunny, with a high near 71.

    High: 71 °F

    Partly Sunny

  • Tuesday Night

    Tuesday Night: Patchy fog after 5am. Otherwise, partly cloudy, with a low around 49.

    Low: 49 °F

    Partly Cloudy
    then Patchy
    Fog

Detailed Forecast

Overnight
Patchy fog. Otherwise, mostly cloudy, with a low around 51. Calm wind.
Saturday
Patchy fog before 9am. Otherwise, mostly cloudy, then gradually becoming sunny, with a high near 77. Calm wind becoming northwest around 5 mph in the afternoon.
Saturday Night
Increasing clouds, with a low around 51. Light northwest wind.
Sunday
Mostly sunny, with a high near 78. North northwest wind 3 to 7 mph.
Sunday Night
Mostly clear, with a low around 51. North northwest wind 5 to 7 mph.
Monday
Mostly sunny, with a high near 75.
Monday Night
Partly cloudy, with a low around 52.
Tuesday
Partly sunny, with a high near 71.
Tuesday Night
Patchy fog after 5am. Otherwise, partly cloudy, with a low around 49.
Wednesday
Patchy fog before 7am. Otherwise, partly sunny, with a high near 70.
Wednesday Night
Mostly cloudy, with a low around 50.
Thursday
Mostly cloudy, with a high near 68.
Thursday Night
Mostly cloudy, with a low around 50.
Friday
Partly sunny, with a high near 67.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Kelso WA
 46.1°N 122.87°W (Elev. 292 ft)
Last Update:
12:41 am PDT Sep 19, 2026
Forecast Valid:
1am PDT Sep 19, 2026-6pm PDT Sep 25, 2026
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database

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High Temperature

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Chance of Precipitation