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

Heat the Southwest; Fire Weather in the Central U.S.; Kona Low Impacting Hawaii

A rare March heat wave is ongoing with much above-normal temperatures over the Southwest U.S. through this weekend. Periods of critical fire weather will persist from the central Rockies to the central and southern Plains through the weekend as gusty winds and low relative humidity continue. A Kona low will continue to bring several rounds of moderate to heavy rainfall to Hawaii through Sunday. Read More >

Current conditions at

Southwest Washington Regional Airport (KKLS)

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

Clear

30°F

-1°C

Humidity 100%
Wind Speed N 0 MPH
Barometer 30.43 in (1030.48 mb)
Dewpoint 30°F (-1°C)
Visibility 10.00 mi
Last update 22 Mar 03:10 AM PDT
Extended Forecast for

Kelso WA

  • Overnight

    Overnight: Areas of frost. Otherwise, mostly clear, with a steady temperature around 36. Calm wind.

    Low: 36 °F

    Areas Frost

  • Sunday

    Sunday: Widespread frost, mainly before 8am. Otherwise, mostly sunny, with a high near 57. Calm wind becoming north 5 to 9 mph in the afternoon.

    High: 57 °F

    Frost then
    Mostly Sunny

  • Sunday Night

    Sunday Night: Areas of frost after 3am. Otherwise, mostly cloudy, with a low around 35. North northwest wind 6 to 8 mph.

    Low: 35 °F

    Mostly Cloudy
    then Areas
    Frost

  • Monday

    Monday: Areas of frost before 9am. Otherwise, partly sunny, with a high near 57. Calm wind becoming north northwest around 6 mph in the afternoon.

    High: 57 °F

    Areas Frost
    then Mostly
    Cloudy

  • Monday Night

    Monday Night: A 50 percent chance of showers after 11pm. Cloudy, with a low around 43. North wind around 6 mph becoming calm.

    Low: 43 °F

    Chance
    Showers

  • Tuesday

    Tuesday: Rain. High near 56. Chance of precipitation is 100%.

    High: 56 °F

    Rain

  • Tuesday Night

    Tuesday Night: Rain. Low around 42. Chance of precipitation is 90%.

    Low: 42 °F

    Rain then
    Rain Likely

  • Wednesday

    Wednesday: Rain. Mostly cloudy, with a high near 54.

    High: 54 °F

    Rain

  • Wednesday Night

    Wednesday Night: A chance of rain, mainly before 11pm. Snow level 2700 feet lowering to 1500 feet after midnight . Partly cloudy, with a low around 35.

    Low: 35 °F

    Chance Rain

Detailed Forecast

Overnight
Areas of frost. Otherwise, mostly clear, with a steady temperature around 36. Calm wind.
Sunday
Widespread frost, mainly before 8am. Otherwise, mostly sunny, with a high near 57. Calm wind becoming north 5 to 9 mph in the afternoon.
Sunday Night
Areas of frost after 3am. Otherwise, mostly cloudy, with a low around 35. North northwest wind 6 to 8 mph.
Monday
Areas of frost before 9am. Otherwise, partly sunny, with a high near 57. Calm wind becoming north northwest around 6 mph in the afternoon.
Monday Night
A 50 percent chance of showers after 11pm. Cloudy, with a low around 43. North wind around 6 mph becoming calm.
Tuesday
Rain. High near 56. Chance of precipitation is 100%.
Tuesday Night
Rain. Low around 42. Chance of precipitation is 90%.
Wednesday
Rain. Mostly cloudy, with a high near 54.
Wednesday Night
A chance of rain, mainly before 11pm. Snow level 2700 feet lowering to 1500 feet after midnight . Partly cloudy, with a low around 35.
Thursday
A slight chance of rain before 11am. Snow level 1300 feet rising to 2500 feet in the afternoon. Mostly sunny, with a high near 56.
Thursday Night
Mostly clear, with a low around 34.
Friday
Mostly sunny, with a high near 62.
Friday Night
Partly cloudy, with a low around 37.
Saturday
Mostly sunny, with a high near 62.
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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:
2:41 am PDT Mar 22, 2026
Forecast Valid:
3am PDT Mar 22, 2026-6pm PDT Mar 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