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.

Overcast

46°F

8°C

Humidity 81%
Wind Speed WNW 4 MPH
Barometer 30.17 in (1021.67 mb)
Dewpoint 41°F (5°C)
Visibility 10.00 mi
Wind Chill44°F (7°C)
Last update 21 Mar 03:00 AM PDT
Extended Forecast for

6 Miles S Kelso WA

  • Overnight

    Overnight: Mostly cloudy, with a steady temperature around 41. Northwest wind around 6 mph.

    Low: 41 °F

    Mostly Cloudy

  • Saturday

    Saturday: Areas of frost between 8am and 9am.  Otherwise, sunny, with a high near 54. Northwest wind 3 to 7 mph.

    High: 54 °F

    Areas Frost
    then Sunny

  • Saturday Night

    Saturday Night: Patchy fog after 4am. Widespread frost after midnight.  Otherwise, mostly clear, with a low around 32. Northwest wind around 6 mph becoming calm  in the evening.

    Low: 32 °F

    Mostly Clear
    then Frost
    and Patchy
    Fog

  • Sunday

    Sunday: Widespread frost before 9am.  Otherwise, mostly sunny, with a high near 57. Calm wind becoming north around 6 mph in the afternoon.

    High: 57 °F

    Frost then
    Partly Sunny

  • Sunday Night

    Sunday Night: Patchy frost after 4am.  Otherwise, partly cloudy, with a low around 36. North northwest wind 5 to 7 mph.

    Low: 36 °F

    Partly Cloudy
    then Patchy
    Frost

  • Monday

    Monday: Patchy frost before 7am.  Otherwise, mostly cloudy, with a high near 57.

    High: 57 °F

    Patchy Frost
    then Mostly
    Cloudy

  • Monday Night

    Monday Night: A 50 percent chance of rain after 11pm.  Mostly cloudy, with a low around 42.

    Low: 42 °F

    Chance Rain

  • Tuesday

    Tuesday: Rain.  Cloudy, with a high near 56.

    High: 56 °F

    Rain

  • Tuesday Night

    Tuesday Night: Rain.  Mostly cloudy, with a low around 40.

    Low: 40 °F

    Rain

Detailed Forecast

Overnight
Mostly cloudy, with a steady temperature around 41. Northwest wind around 6 mph.
Saturday
Areas of frost between 8am and 9am. Otherwise, sunny, with a high near 54. Northwest wind 3 to 7 mph.
Saturday Night
Patchy fog after 4am. Widespread frost after midnight. Otherwise, mostly clear, with a low around 32. Northwest wind around 6 mph becoming calm in the evening.
Sunday
Widespread frost before 9am. Otherwise, mostly sunny, with a high near 57. Calm wind becoming north around 6 mph in the afternoon.
Sunday Night
Patchy frost after 4am. Otherwise, partly cloudy, with a low around 36. North northwest wind 5 to 7 mph.
Monday
Patchy frost before 7am. Otherwise, mostly cloudy, with a high near 57.
Monday Night
A 50 percent chance of rain after 11pm. Mostly cloudy, with a low around 42.
Tuesday
Rain. Cloudy, with a high near 56.
Tuesday Night
Rain. Mostly cloudy, with a low around 40.
Wednesday
Rain. Mostly cloudy, with a high near 54.
Wednesday Night
Rain likely. Snow level 3100 feet lowering to 2100 feet after midnight . Mostly cloudy, with a low around 35.
Thursday
A chance of rain. Snow level 1900 feet rising to 2800 feet in the afternoon. Partly sunny, with a high near 55.
Thursday Night
Partly cloudy, with a low around 34.
Friday
Mostly sunny, with a high near 58.
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ABOUT THIS FORECAST

 
Point Forecast:
6 Miles S Kelso WA
 46.04°N 122.88°W (Elev. 200 ft)
2:41 am PDT Mar 21, 2026
3am PDT Mar 21, 2026-6pm PDT Mar 27, 2026
 
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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