Severe Thunderstorms and Heavy Rainfall in the Ohio Valley and Great Lakes; Winter Weather in the Northern Tier

A slow moving front extending from the Great Lakes region into the Plains will bring snow, wintry mix, and ice accumulation north of the front from the Upper Midwest into New England, and severe weather and heavy rain south of the front. Scattered severe thunderstorms with damaging gusts, severe hail, and heavy rain are expected across parts of the Great Lakes/Midwest through tonight. Read More >

Current conditions at

Southwest Washington Regional Airport (KKLS)

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

Overcast

50°F

10°C

Humidity 71%
Wind Speed SSE 6 MPH
Barometer 29.72 in (1006.44 mb)
Dewpoint 41°F (5°C)
Visibility 10.00 mi
Wind Chill48°F (9°C)
Last update 31 Mar 11:20 PM PDT
Extended Forecast for

Kelso WA

  • Tonight

    Tonight: Rain, mainly after 2am.  Low around 42. South southeast wind 5 to 9 mph, with gusts as high as 18 mph.  Chance of precipitation is 90%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 42 °F

    Rain

  • Wednesday

    Wednesday: Rain.  High near 53. South southeast wind 10 to 14 mph, with gusts as high as 28 mph.  Chance of precipitation is 100%. New precipitation amounts between a quarter and half of an inch possible.

    High: 53 °F

    Rain

  • Wednesday Night

    Wednesday Night: Rain, mainly before 1am.  Low around 38. South southwest wind 5 to 7 mph becoming calm  after midnight.  Chance of precipitation is 80%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 38 °F

    Rain

  • Thursday

    Thursday: Rain likely.  Cloudy, then gradually becoming mostly sunny, with a high near 55. Calm wind becoming west 5 to 9 mph in the afternoon.  Chance of precipitation is 70%.

    High: 55 °F

    Rain Likely

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 37. West wind 5 to 10 mph becoming light and variable  in the evening.

    Low: 37 °F

    Partly Cloudy

  • Friday

    Friday: Mostly sunny, with a high near 61.

    High: 61 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 38.

    Low: 38 °F

    Mostly Clear

  • Saturday

    Saturday: Mostly sunny, with a high near 67.

    High: 67 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 41.

    Low: 41 °F

    Partly Cloudy

Detailed Forecast

Tonight
Rain, mainly after 2am. Low around 42. South southeast wind 5 to 9 mph, with gusts as high as 18 mph. Chance of precipitation is 90%. New precipitation amounts of less than a tenth of an inch possible.
Wednesday
Rain. High near 53. South southeast wind 10 to 14 mph, with gusts as high as 28 mph. Chance of precipitation is 100%. New precipitation amounts between a quarter and half of an inch possible.
Wednesday Night
Rain, mainly before 1am. Low around 38. South southwest wind 5 to 7 mph becoming calm after midnight. Chance of precipitation is 80%. New precipitation amounts of less than a tenth of an inch possible.
Thursday
Rain likely. Cloudy, then gradually becoming mostly sunny, with a high near 55. Calm wind becoming west 5 to 9 mph in the afternoon. Chance of precipitation is 70%.
Thursday Night
Partly cloudy, with a low around 37. West wind 5 to 10 mph becoming light and variable in the evening.
Friday
Mostly sunny, with a high near 61.
Friday Night
Mostly clear, with a low around 38.
Saturday
Mostly sunny, with a high near 67.
Saturday Night
Partly cloudy, with a low around 41.
Sunday
Mostly sunny, with a high near 70.
Sunday Night
Partly cloudy, with a low around 44.
Monday
Partly sunny, with a high near 71.
Monday Night
Mostly cloudy, with a low around 46.
Tuesday
A chance of rain. Partly sunny, with a high near 63.
Basemap Options
Click map to change the forecast location
Loading map...

ABOUT THIS FORECAST

 
Point Forecast:
Kelso WA
 46.12°N 122.91°W (Elev. 52 ft)
11:27 pm PDT Mar 31, 2026
11pm PDT Mar 31, 2026-6pm PDT Apr 7, 2026
 
Get as KML Get as XML

Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database