Heat and Fire Weather Concerns West; Heavy Rain and Thunderstorms from Plains to mid-Atlantic

Thunderstorms and locally heavy rainfall is expected from the Central Plains to the Ohio Valley, mid-Atlantic and across the Southeast. Severe weather from the Upper Midwest to Central Plains increases on Friday. Major to Extreme HeatRisk continues across the Southern Plains to the lower Mississippi Valley late this week. Fire weather concerns for the northern Rockies and northern Plains today. Read More >

Current conditions at

Chehalis-Centralia Airport (KCLS)

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

Clear

64°F

18°C

Humidity 88%
Wind Speed SW 5 MPH
Barometer 30.05 in (1017.61 mb)
Dewpoint 61°F (16°C)
Visibility 10.00 mi
Last update 10 Sep 09:35 AM PDT
Extended Forecast for

Chehalis WA

  • Today

    Today: Mostly cloudy, with a high near 72. West northwest wind 5 to 7 mph.

    High: 72 °F

    Mostly Cloudy

  • Tonight

    Tonight: Increasing clouds, with a low around 49. West wind around 5 mph becoming calm  in the evening.

    Low: 49 °F

    Increasing
    Clouds

  • Friday

    Friday: Cloudy, with a high near 70. Calm wind.

    High: 70 °F

    Cloudy

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 50. Calm wind.

    Low: 50 °F

    Mostly Cloudy

  • Saturday

    Saturday: A chance of rain before 2pm, then a chance of showers and thunderstorms between 2pm and 5pm, then showers likely and possibly a thunderstorm after 5pm.  Areas of fog before 10am.  Otherwise, mostly cloudy, with a high near 67. Calm wind.  Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 67 °F

    Showers
    Likely and
    Areas Fog

  • Saturday Night

    Saturday Night: Showers likely and possibly a thunderstorm before 8pm, then rain likely, mainly between 8pm and 11pm.  Patchy fog after 9pm.  Otherwise, mostly cloudy, with a low around 49. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Low: 49 °F

    Showers
    Likely and
    Patchy Fog

  • Sunday

    Sunday: A 20 percent chance of rain.  Mostly cloudy, with a high near 69.

    High: 69 °F

    Slight Chance
    Rain

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 48.

    Low: 48 °F

    Partly Cloudy

  • Monday

    Monday: Mostly sunny, with a high near 75.

    High: 75 °F

    Mostly Sunny

Detailed Forecast

Today
Mostly cloudy, with a high near 72. West northwest wind 5 to 7 mph.
Tonight
Increasing clouds, with a low around 49. West wind around 5 mph becoming calm in the evening.
Friday
Cloudy, with a high near 70. Calm wind.
Friday Night
Mostly cloudy, with a low around 50. Calm wind.
Saturday
A chance of rain before 2pm, then a chance of showers and thunderstorms between 2pm and 5pm, then showers likely and possibly a thunderstorm after 5pm. Areas of fog before 10am. Otherwise, mostly cloudy, with a high near 67. Calm wind. Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Saturday Night
Showers likely and possibly a thunderstorm before 8pm, then rain likely, mainly between 8pm and 11pm. Patchy fog after 9pm. Otherwise, mostly cloudy, with a low around 49. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Sunday
A 20 percent chance of rain. Mostly cloudy, with a high near 69.
Sunday Night
Partly cloudy, with a low around 48.
Monday
Mostly sunny, with a high near 75.
Monday Night
Mostly clear, with a low around 49.
Tuesday
Sunny, with a high near 79.
Tuesday Night
Mostly clear, with a low around 51.
Wednesday
Sunny, with a high near 83.
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ABOUT THIS FORECAST

 
Point Forecast:
Chehalis WA
 46.66°N 122.98°W (Elev. 177 ft)
12:45 am PDT Sep 10, 2026
9am PDT Sep 10, 2026-6pm PDT Sep 16, 2026
 
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Additional Resources

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