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

Heavy Rainfall Threat Continues in the Southwest on Monday; Record Warmth in the Plains and Midwest

Remnant moisture from Tropical Storm Rachel will persist over portions of the Great Basin and Southwest on Monday, bringing a potential heavy to excessive rainfall risk. Well above average and potentially record breaking temperatures will develop across the Plains and Midwest early this week, spreading into the Lower Mississippi Valley and Southeast midweek. Read More >

Hazardous Weather Conditions

Current conditions at

Southwest Washington Regional Airport (KKLS)

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

Clear

39°F

4°C

Humidity 93%
Wind Speed NW 3 MPH
Barometer 29.99 in (1015.58 mb)
Dewpoint 37°F (3°C)
Visibility 10.00 mi
Last update 12 Oct 12:15 AM PDT
Extended Forecast for

Kelso WA

Frost Advisory until October 12, 08:00am
Click here for hazard details and duration
Frost Advisory
  •  
    Frost Advisory until October 12, 08:00am

    NOW until 8:00am Mon

    Frost Advisory

  • Overnight

    Low: 40 °F

    Clear

  • Columbus Day

    Columbus Day: Areas of frost before 8am. Otherwise, sunny, with a high near 66. Calm wind becoming northwest around 5 mph in the afternoon.

    High: 66 °F

    Areas Frost
    then Sunny

  • Monday Night

    Monday Night: Increasing clouds, with a low around 42. Calm wind.

    Low: 42 °F

    Increasing
    Clouds

  • Tuesday

    Tuesday: Partly sunny, with a high near 65. Calm wind.

    High: 65 °F

    Partly Sunny

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 47. Calm wind.

    Low: 47 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: Partly sunny, with a high near 69.

    High: 69 °F

    Partly Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 49.

    Low: 49 °F

    Partly Cloudy

  • Thursday

    Thursday: Mostly sunny, with a high near 77.

    High: 77 °F

    Mostly Sunny

Detailed Forecast

Overnight
Clear, with a low around 40. Calm wind.
Columbus Day
Areas of frost before 8am. Otherwise, sunny, with a high near 66. Calm wind becoming northwest around 5 mph in the afternoon.
Monday Night
Increasing clouds, with a low around 42. Calm wind.
Tuesday
Partly sunny, with a high near 65. Calm wind.
Tuesday Night
Mostly cloudy, with a low around 47. Calm wind.
Wednesday
Partly sunny, with a high near 69.
Wednesday Night
Partly cloudy, with a low around 49.
Thursday
Mostly sunny, with a high near 77.
Thursday Night
Mostly clear, with a low around 53.
Friday
Mostly sunny, with a high near 76.
Friday Night
Partly cloudy, with a low around 52.
Saturday
A slight chance of rain. Patchy fog. Otherwise, mostly cloudy, with a high near 67.
Saturday Night
Mostly cloudy, with a low around 47.
Sunday
Partly sunny, with a high near 64.
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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:
11:41 pm PDT Oct 11, 2026
Forecast Valid:
12am PDT Oct 12, 2026-6pm PDT Oct 18, 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