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

Severe Thunderstorms and Critical Fire Weather Wednesday

Scattered severe thunderstorms are possible across portions of the northern High Plains Wednesday afternoon and evening. Severe wind gusts are the primary hazard. Gusty winds and low relative humidity will contribute to critical fire weather conditions across parts of the northern Great Plains and Great Basin Wednesday. Read More >

Current conditions at

Chehalis-Centralia Airport (KCLS)

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

Partly Cloudy

57°F

14°C

Humidity 82%
Wind Speed SW 5 MPH
Barometer 29.9 in (1012.53 mb)
Dewpoint 52°F (11°C)
Visibility 10.00 mi
Last update 12 May 10:15 PM PDT
Extended Forecast for

Chehalis WA

  • Tonight

    Tonight: A slight chance of rain before midnight, then a chance of rain after 1am. Mostly cloudy, with a low around 48. Calm wind. Chance of precipitation is 50%.

    Low: 48 °F

    Slight Chance
    Rain then
    Chance Rain

  • Wednesday

    Wednesday: Rain, mainly before 1pm. High near 60. Southwest wind 5 to 13 mph, with gusts as high as 23 mph. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.

    High: 60 °F

    Rain then
    Chance Rain

  • Wednesday Night

    Wednesday Night: A 30 percent chance of rain, mainly before 9pm. Mostly cloudy, with a low around 46. West southwest wind 5 to 10 mph becoming light south in the evening. Winds could gust as high as 22 mph.

    Low: 46 °F

    Chance Rain

  • Thursday

    Thursday: A 20 percent chance of rain. Mostly cloudy, with a high near 61. Calm wind becoming west southwest 5 to 8 mph in the afternoon.

    High: 61 °F

    Slight Chance
    Rain

  • Thursday Night

    Thursday Night: A 30 percent chance of rain. Mostly cloudy, with a low around 43. West wind 5 to 8 mph becoming calm in the evening.

    Low: 43 °F

    Chance Rain

  • Friday

    Friday: Rain likely, mainly after 11am. Mostly cloudy, with a high near 56. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.

    High: 56 °F

    Rain Likely

  • Friday Night

    Friday Night: A 50 percent chance of rain. Mostly cloudy, with a low around 40.

    Low: 40 °F

    Chance Rain

  • Saturday

    Saturday: A chance of rain. Mostly cloudy, with a high near 58.

    High: 58 °F

    Chance Rain

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 38.

    Low: 38 °F

    Partly Cloudy

Detailed Forecast

Tonight
A slight chance of rain before midnight, then a chance of rain after 1am. Mostly cloudy, with a low around 48. Calm wind. Chance of precipitation is 50%.
Wednesday
Rain, mainly before 1pm. High near 60. Southwest wind 5 to 13 mph, with gusts as high as 23 mph. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.
Wednesday Night
A 30 percent chance of rain, mainly before 9pm. Mostly cloudy, with a low around 46. West southwest wind 5 to 10 mph becoming light south in the evening. Winds could gust as high as 22 mph.
Thursday
A 20 percent chance of rain. Mostly cloudy, with a high near 61. Calm wind becoming west southwest 5 to 8 mph in the afternoon.
Thursday Night
A 30 percent chance of rain. Mostly cloudy, with a low around 43. West wind 5 to 8 mph becoming calm in the evening.
Friday
Rain likely, mainly after 11am. Mostly cloudy, with a high near 56. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.
Friday Night
A 50 percent chance of rain. Mostly cloudy, with a low around 40.
Saturday
A chance of rain. Mostly cloudy, with a high near 58.
Saturday Night
Partly cloudy, with a low around 38.
Sunday
Partly sunny, with a high near 62.
Sunday Night
Mostly cloudy, with a low around 40.
Monday
A slight chance of rain. Partly sunny, with a high near 66.
Monday Night
Partly cloudy, with a low around 44.
Tuesday
Mostly sunny, with a high near 71.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Chehalis WA
 46.66°N 122.95°W (Elev. 420 ft)
Last Update:
1:31 pm PDT May 12, 2026
Forecast Valid:
10pm PDT May 12, 2026-6pm PDT May 19, 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