Severe Weather and Heavy Rain from the Great Lakes to the Mid-Atlantic; Heat Persists in the East

Widespread strong thunderstorms with damaging winds and locally heavy rain are expected from the Upper Ohio Valley into the southern Mid-Atlantic today and portions of the central Appalachians and Carolinas on Saturday. Monsoonal moisture will bring a flash flooding threat to the Desert Southwest. Sweltering heat persists from the Plains to the southern Mid-Atlantic through tonight. Read More >

Current conditions at

Chehalis-Centralia Airport (KCLS)

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

Partly Cloudy

68°F

20°C

Humidity 49%
Wind Speed SW 6 MPH
Barometer 29.92 in (1013.21 mb)
Dewpoint 48°F (9°C)
Visibility 10.00 mi
Last update 04 Sep 03:35 PM PDT
Extended Forecast for

Chehalis WA

  • Tonight

    Tonight: Partly cloudy, with a low around 49. Calm wind.

    Low: 49 °F

    Partly Cloudy

  • Saturday

    Saturday: A chance of showers and thunderstorms, mainly between 4pm and 5pm, then a chance of rain and thunderstorms after 5pm.  Partly sunny, with a high near 72. Calm wind.  Chance of precipitation is 30%.

    High: 72 °F

    Partly Sunny
    then Chance
    Showers

  • Saturday Night

    Saturday Night: A 30 percent chance of rain before 7pm.  Mostly cloudy, with a low around 50. Calm wind.

    Low: 50 °F

    Chance Rain
    then Partly
    Cloudy

  • Sunday

    Sunday: Partly sunny, with a high near 74. Calm wind becoming north around 5 mph in the afternoon.

    High: 74 °F

    Partly Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 52. Calm wind.

    Low: 52 °F

    Partly Cloudy

  • Labor Day

    Labor Day: Partly sunny, with a high near 72.

    High: 72 °F

    Partly Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 52.

    Low: 52 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Mostly cloudy, with a high near 75.

    High: 75 °F

    Mostly Cloudy

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 53.

    Low: 53 °F

    Partly Cloudy

Detailed Forecast

Tonight
Partly cloudy, with a low around 49. Calm wind.
Saturday
A chance of showers and thunderstorms, mainly between 4pm and 5pm, then a chance of rain and thunderstorms after 5pm. Partly sunny, with a high near 72. Calm wind. Chance of precipitation is 30%.
Saturday Night
A 30 percent chance of rain before 7pm. Mostly cloudy, with a low around 50. Calm wind.
Sunday
Partly sunny, with a high near 74. Calm wind becoming north around 5 mph in the afternoon.
Sunday Night
Partly cloudy, with a low around 52. Calm wind.
Labor Day
Partly sunny, with a high near 72.
Monday Night
Partly cloudy, with a low around 52.
Tuesday
Mostly cloudy, with a high near 75.
Tuesday Night
Partly cloudy, with a low around 53.
Wednesday
Mostly sunny, with a high near 83.
Wednesday Night
Mostly clear, with a low around 55.
Thursday
Mostly sunny, with a high near 78.
Thursday Night
A slight chance of rain. Partly cloudy, with a low around 55.
Friday
A chance of rain. Partly sunny, with a high near 70.
Basemap Options
Click map to change the forecast location
Loading map...

ABOUT THIS FORECAST

 
Point Forecast:
Chehalis WA
 46.68°N 122.98°W (Elev. 180 ft)
1:41 pm PDT Sep 4, 2026
3pm PDT Sep 4, 2026-6pm PDT Sep 11, 2026
 
Get as KML Get as XML

Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database