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Showers and Thunderstorms for the Eastern Third of the Country; Fire Weather Concerns; Flooding Issues for the Great Lakes Region

Showers and thunderstorms will continue along and ahead of a cold front for the eastern third of the country. The rainfall for the Great Lakes region could prolong the ongoing flooding. Much cooler weather will filter in behind this cold front along and east of the Rockies. Where the rain is needed, the Southern High Plains, critical fire weather concerns through this weekend. Read More >

Current conditions at

Chehalis-Centralia Airport (KCLS)

Lat: 46.677°NLon: 122.9827°WElev: 177.0ft.

Clear

59°F

15°C

Humidity 51%
Wind Speed N 0 MPH
Barometer 29.87 in (1011.51 mb)
Dewpoint 41°F (5°C)
Visibility 10.00 mi
Last update 18 Apr 08:15 PM PDT
Extended Forecast for

Chehalis WA

  • Tonight

    Tonight: Partly cloudy, with a low around 43. Calm wind.

    Low: 43 °F

    Partly Cloudy

  • Sunday

    Sunday: Partly sunny, with a high near 73. Light and variable wind.

    High: 73 °F

    Partly Sunny

  • Sunday Night

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

    Low: 47 °F

    Mostly Cloudy

  • Monday

    Monday: Mostly cloudy, with a high near 74. Light and variable wind.

    High: 74 °F

    Mostly Cloudy

  • Monday Night

    Monday Night: A 30 percent chance of rain after 11pm. Mostly cloudy, with a low around 47. West northwest wind around 6 mph becoming calm in the evening.

    Low: 47 °F

    Chance Rain

  • Tuesday

    Tuesday: Rain likely, mainly after 11am. Mostly cloudy, with a high near 62. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.

    High: 62 °F

    Rain Likely

  • Tuesday Night

    Tuesday Night: A 50 percent chance of rain. Mostly cloudy, with a low around 47.

    Low: 47 °F

    Chance Rain

  • Wednesday

    Wednesday: Rain likely, mainly before 11am. Mostly cloudy, with a high near 57.

    High: 57 °F

    Rain Likely

  • Wednesday Night

    Wednesday Night: A slight chance of rain before 11pm. Mostly cloudy, with a low around 41.

    Low: 41 °F

    Slight Chance
    Rain then
    Mostly Cloudy

Detailed Forecast

Tonight
Partly cloudy, with a low around 43. Calm wind.
Sunday
Partly sunny, with a high near 73. Light and variable wind.
Sunday Night
Mostly cloudy, with a low around 47. Calm wind.
Monday
Mostly cloudy, with a high near 74. Light and variable wind.
Monday Night
A 30 percent chance of rain after 11pm. Mostly cloudy, with a low around 47. West northwest wind around 6 mph becoming calm in the evening.
Tuesday
Rain likely, mainly after 11am. Mostly cloudy, with a high near 62. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.
Tuesday Night
A 50 percent chance of rain. Mostly cloudy, with a low around 47.
Wednesday
Rain likely, mainly before 11am. Mostly cloudy, with a high near 57.
Wednesday Night
A slight chance of rain before 11pm. Mostly cloudy, with a low around 41.
Thursday
Partly sunny, with a high near 64.
Thursday Night
Mostly clear, with a low around 40.
Friday
Mostly sunny, with a high near 68.
Friday Night
Mostly clear, with a low around 41.
Saturday
Mostly sunny, with a high near 68.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Chehalis WA
 46.66°N 122.95°W (Elev. 420 ft)
Last Update:
11:26 am PDT Apr 18, 2026
Forecast Valid:
8pm PDT Apr 18, 2026-6pm PDT Apr 25, 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