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Storm Systems Continue to Impact the Pacific Northwest; Lake Effect Snow Continues

A second Pacific cold front will cross the Pacific Northwest Wednesday followed by another atmospheric river. Each of these features will bring additional periods of gusty winds, mountain snow, and heavy to excessive rainfall with renewed flooding. Heavy lake effect snow continues into Tuesday east of Lakes Erie and Ontario. Read More >

Hazardous Weather Conditions

Current conditions at

Southwest Washington Regional Airport (KKLS)

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

Overcast

54°F

12°C

Humidity 76%
Wind Speed S 4 MPH
Barometer 30.09 in (1018.96 mb)
Dewpoint 46°F (8°C)
Visibility 10.00 mi
Last update 15 Dec 07:20 PM PST
Extended Forecast for

Kelso WA

Flood Watch December 18, 04:00am until December 20, 04:00am
Click here for hazard details and duration
Flood Watch

  • Tonight

    Tonight: Rain, mainly after 1am. Low around 47. South southeast wind around 7 mph. Chance of precipitation is 80%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 47 °F

    Chance Rain
    then Rain

  • Tuesday

    Tuesday: Rain. High near 56. South wind 10 to 14 mph, with gusts as high as 24 mph. Chance of precipitation is 100%. New precipitation amounts between a quarter and half of an inch possible.

    High: 56 °F

    Rain

  • Tuesday Night

    Tuesday Night: Rain and possibly a thunderstorm before 1am, then rain between 1am and 4am, then showers and possibly a thunderstorm after 4am. Low around 42. Breezy, with a south wind 16 to 20 mph becoming west after midnight. Winds could gust as high as 40 mph. Chance of precipitation is 100%. New rainfall amounts between a half and three quarters of an inch possible.

    Low: 42 °F

    Showers and
    Breezy

  • Wednesday

    Wednesday: Rain and possibly a thunderstorm before 10am, then showers and possibly a thunderstorm between 10am and 4pm, then rain likely and possibly a thunderstorm after 4pm. High near 49. Southwest wind 11 to 13 mph, with gusts as high as 28 mph. Chance of precipitation is 100%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 49 °F

    Showers

  • Wednesday Night

    Wednesday Night: Rain. Low around 41. South southeast wind 7 to 9 mph. Chance of precipitation is 90%. New precipitation amounts between a tenth and quarter of an inch possible.

    Low: 41 °F

    Rain

  • Thursday

    Thursday: Rain. High near 51. Chance of precipitation is 100%.

    High: 51 °F

    Rain

  • Thursday Night

    Thursday Night: Rain. Low around 41. Chance of precipitation is 90%.

    Low: 41 °F

    Rain

  • Friday

    Friday: Rain. Mostly cloudy, with a high near 47.

    High: 47 °F

    Rain

  • Friday Night

    Friday Night: Rain likely. Mostly cloudy, with a low around 38.

    Low: 38 °F

    Rain Likely

Detailed Forecast

Tonight
Rain, mainly after 1am. Low around 47. South southeast wind around 7 mph. Chance of precipitation is 80%. New precipitation amounts of less than a tenth of an inch possible.
Tuesday
Rain. High near 56. South wind 10 to 14 mph, with gusts as high as 24 mph. Chance of precipitation is 100%. New precipitation amounts between a quarter and half of an inch possible.
Tuesday Night
Rain and possibly a thunderstorm before 1am, then rain between 1am and 4am, then showers and possibly a thunderstorm after 4am. Low around 42. Breezy, with a south wind 16 to 20 mph becoming west after midnight. Winds could gust as high as 40 mph. Chance of precipitation is 100%. New rainfall amounts between a half and three quarters of an inch possible.
Wednesday
Rain and possibly a thunderstorm before 10am, then showers and possibly a thunderstorm between 10am and 4pm, then rain likely and possibly a thunderstorm after 4pm. High near 49. Southwest wind 11 to 13 mph, with gusts as high as 28 mph. Chance of precipitation is 100%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Wednesday Night
Rain. Low around 41. South southeast wind 7 to 9 mph. Chance of precipitation is 90%. New precipitation amounts between a tenth and quarter of an inch possible.
Thursday
Rain. High near 51. Chance of precipitation is 100%.
Thursday Night
Rain. Low around 41. Chance of precipitation is 90%.
Friday
Rain. Mostly cloudy, with a high near 47.
Friday Night
Rain likely. Mostly cloudy, with a low around 38.
Saturday
Rain likely. Mostly cloudy, with a high near 46.
Saturday Night
Rain likely. Mostly cloudy, with a low around 39.
Sunday
A chance of rain. Mostly cloudy, with a high near 47.
Sunday Night
Rain likely. Mostly cloudy, with a low around 39.
Monday
Rain likely. Mostly cloudy, with a high near 48.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Kelso WA
 46.12°N 122.91°W (Elev. 52 ft)
Last Update:
6:41 pm PST Dec 15, 2025
Forecast Valid:
7pm PST Dec 15, 2025-6pm PST Dec 22, 2025
 
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