Dangerous Heat in the Southwest; Severe Thunderstorms from the Central Plains into the Ohio Valley

Dangerous heat will build across the Southwest U.S. through the end of the week with daytime highs of 110-115°F. Isolated to widely scattered severe storms are expected across parts of the central and southern High Plains, Great Lakes into the Ohio Valley, and parts of the Ozarks to Lower Mississippi Valley today. Read More >

Current conditions at

Chehalis-Centralia Airport (KCLS)

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

Clear

79°F

26°C

Humidity 41%
Wind Speed N 5 MPH
Barometer 30.01 in (1016.26 mb)
Dewpoint 54°F (12°C)
Visibility 9.00 mi
Heat Index79°F (26°C)
Last update 26 Aug 02:55 PM PDT
Extended Forecast for

6 Miles SW Chehalis WA

  • Tonight

    Tonight: Patchy fog after 5am.  Otherwise, increasing clouds, with a low around 54. West wind around 5 mph becoming calm  in the evening.

    Low: 54 °F

    Partly Cloudy
    then Patchy
    Fog

  • Thursday

    Thursday: Patchy fog before 8am.  Otherwise, cloudy, then gradually becoming mostly sunny, with a high near 71. Calm wind becoming south southwest around 6 mph in the morning.

    High: 71 °F

    Patchy Fog
    then Mostly
    Sunny

  • Thursday Night

    Thursday Night: Increasing clouds, with a low around 54. West wind around 5 mph becoming calm  in the evening.

    Low: 54 °F

    Increasing
    Clouds

  • Friday

    Friday: Patchy fog before 9am.  Otherwise, cloudy, then gradually becoming mostly sunny, with a high near 70. Light and variable wind.

    High: 70 °F

    Patchy Fog
    then Partly
    Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 52. West southwest wind 3 to 7 mph.

    Low: 52 °F

    Partly Cloudy

  • Saturday

    Saturday: A 30 percent chance of showers after 11am.  Partly sunny, with a high near 70.

    High: 70 °F

    Chance
    Showers

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 50.

    Low: 50 °F

    Partly Cloudy

  • Sunday

    Sunday: Partly sunny, with a high near 73.

    High: 73 °F

    Partly Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 49.

    Low: 49 °F

    Partly Cloudy

Detailed Forecast

Tonight
Patchy fog after 5am. Otherwise, increasing clouds, with a low around 54. West wind around 5 mph becoming calm in the evening.
Thursday
Patchy fog before 8am. Otherwise, cloudy, then gradually becoming mostly sunny, with a high near 71. Calm wind becoming south southwest around 6 mph in the morning.
Thursday Night
Increasing clouds, with a low around 54. West wind around 5 mph becoming calm in the evening.
Friday
Patchy fog before 9am. Otherwise, cloudy, then gradually becoming mostly sunny, with a high near 70. Light and variable wind.
Friday Night
Partly cloudy, with a low around 52. West southwest wind 3 to 7 mph.
Saturday
A 30 percent chance of showers after 11am. Partly sunny, with a high near 70.
Saturday Night
Partly cloudy, with a low around 50.
Sunday
Partly sunny, with a high near 73.
Sunday Night
Partly cloudy, with a low around 49.
Monday
Partly sunny, with a high near 74.
Monday Night
Mostly cloudy, with a low around 52.
Tuesday
A chance of rain. Mostly cloudy, with a high near 70.
Tuesday Night
A slight chance of rain. Mostly cloudy, with a low around 52.
Wednesday
A chance of rain. Mostly cloudy, with a high near 68.
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ABOUT THIS FORECAST

 
Point Forecast:
6 Miles SW Chehalis WA
 46.6°N 123.06°W (Elev. 607 ft)
12:55 pm PDT Aug 26, 2026
3pm PDT Aug 26, 2026-6pm PDT Sep 2, 2026
 
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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