Severe Weather and Heavy Rainfall in the Midwest and Desert Southwest; Mid-Summer Heat Continues

Severe thunderstorm and heavy rainfall are possible in the Midwest into the Central Appalachians and the Desert Southwest early this week. Storms are also expected in parts of the northern Plains today. Fire weather and air quality concerns will persist across portions of the West. Mid-summer heat will continue across much of the CONUS this week, especially in the the south-central High Plains. Read More >

Current conditions at

Chehalis-Centralia Airport (KCLS)

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

Overcast

57°F

14°C

Humidity 100%
Wind Speed WSW 3 MPH
Barometer 30.15 in (1021.0 mb)
Dewpoint 57°F (14°C)
Visibility 10.00 mi
Last update 10 Aug 09:15 AM PDT
Extended Forecast for

Chehalis WA

  • Today

    Today: Mostly cloudy, then gradually becoming sunny, with a high near 79. Calm wind becoming northwest 5 to 7 mph in the afternoon.

    High: 79 °F

    Decreasing
    Clouds

  • Tonight

    Tonight: Increasing clouds, with a low around 52. West northwest wind 5 to 7 mph becoming calm  in the evening.

    Low: 52 °F

    Increasing
    Clouds

  • Tuesday

    Tuesday: Mostly sunny, with a high near 81. Calm wind becoming west northwest 5 to 7 mph in the afternoon.

    High: 81 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Increasing clouds, with a low around 56. West northwest wind 5 to 8 mph becoming calm  after midnight.

    Low: 56 °F

    Increasing
    Clouds

  • Wednesday

    Wednesday: Mostly cloudy, with a high near 78. Calm wind becoming west northwest around 5 mph in the afternoon.

    High: 78 °F

    Mostly Cloudy

  • Wednesday Night

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

    Low: 53 °F

    Partly Cloudy

  • Thursday

    Thursday: Mostly sunny, with a high near 84.

    High: 84 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 55.

    Low: 55 °F

    Mostly Clear

  • Friday

    Friday: Mostly sunny, with a high near 88.

    High: 88 °F

    Mostly Sunny

Detailed Forecast

Today
Mostly cloudy, then gradually becoming sunny, with a high near 79. Calm wind becoming northwest 5 to 7 mph in the afternoon.
Tonight
Increasing clouds, with a low around 52. West northwest wind 5 to 7 mph becoming calm in the evening.
Tuesday
Mostly sunny, with a high near 81. Calm wind becoming west northwest 5 to 7 mph in the afternoon.
Tuesday Night
Increasing clouds, with a low around 56. West northwest wind 5 to 8 mph becoming calm after midnight.
Wednesday
Mostly cloudy, with a high near 78. Calm wind becoming west northwest around 5 mph in the afternoon.
Wednesday Night
Partly cloudy, with a low around 53.
Thursday
Mostly sunny, with a high near 84.
Thursday Night
Mostly clear, with a low around 55.
Friday
Mostly sunny, with a high near 88.
Friday Night
Partly cloudy, with a low around 55.
Saturday
Partly sunny, with a high near 84.
Saturday Night
Partly cloudy, with a low around 54.
Sunday
Mostly cloudy, with a high near 82.
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)
1:00 am PDT Aug 10, 2026
9am PDT Aug 10, 2026-6pm PDT Aug 16, 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