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

Excessive Rainfall and Potential Tropical Cyclone in the South; Severe Thunderstorms in the Midwest

Excessive rainfall may produce locally considerable flash flooding over parts of the northwestern Gulf Coast, lower Mississippi River Valley, and Deep South through Thursday. Potential Tropical Cyclone One is forecast to become a tropical storm (Arthur) as it moves along or just off the northwestern Gulf coast through Wednesday. An outbreak of severe weather is forecast in the Midwest Wednesday. Read More >

Current conditions at

Chehalis-Centralia Airport (KCLS)

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

Clear

64°F

18°C

Humidity 63%
Wind Speed SW 8 MPH
Barometer 30.07 in (1018.29 mb)
Dewpoint 52°F (11°C)
Visibility 10.00 mi
Last update 16 Jun 07:55 PM PDT
Extended Forecast for

Chehalis WA

  • Tonight

    Tonight: Partly cloudy, with a low around 49. West wind 5 to 9 mph becoming calm after midnight.

    Low: 49 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Mostly cloudy, then gradually becoming sunny, with a high near 77. Calm wind becoming north northwest around 6 mph in the afternoon.

    High: 77 °F

    Decreasing
    Clouds

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 51. West northwest wind 5 to 8 mph becoming calm after midnight.

    Low: 51 °F

    Mostly Clear

  • Thursday

    Thursday: Mostly sunny, with a high near 84. North wind 3 to 8 mph.

    High: 84 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 54. North wind 5 to 7 mph becoming calm after midnight.

    Low: 54 °F

    Partly Cloudy

  • Juneteenth

    Juneteenth: Mostly sunny, with a high near 83.

    High: 83 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 52.

    Low: 52 °F

    Mostly Clear

  • Saturday

    Saturday: Mostly sunny, with a high near 77.

    High: 77 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 52.

    Low: 52 °F

    Mostly Clear

Detailed Forecast

Tonight
Partly cloudy, with a low around 49. West wind 5 to 9 mph becoming calm after midnight.
Wednesday
Mostly cloudy, then gradually becoming sunny, with a high near 77. Calm wind becoming north northwest around 6 mph in the afternoon.
Wednesday Night
Mostly clear, with a low around 51. West northwest wind 5 to 8 mph becoming calm after midnight.
Thursday
Mostly sunny, with a high near 84. North wind 3 to 8 mph.
Thursday Night
Partly cloudy, with a low around 54. North wind 5 to 7 mph becoming calm after midnight.
Juneteenth
Mostly sunny, with a high near 83.
Friday Night
Mostly clear, with a low around 52.
Saturday
Mostly sunny, with a high near 77.
Saturday Night
Mostly clear, with a low around 52.
Sunday
Mostly sunny, with a high near 82.
Sunday Night
Mostly clear, with a low around 54.
Monday
Sunny, with a high near 87.
Monday Night
Mostly clear, with a low around 54.
Tuesday
Sunny, with a high near 86.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Chehalis WA
 46.68°N 122.98°W (Elev. 180 ft)
Last Update:
11:26 am PDT Jun 16, 2026
Forecast Valid:
8pm PDT Jun 16, 2026-6pm PDT Jun 23, 2026
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation