Thunderstorms and Heavy Rain in the Mid-South; Heat Continues in the Southeast and Southwest

Severe thunderstorms and heavy rain are expected across portions of the mid-Mississippi Valley into the Ohio Valley and portions of Arizona. Dangerous heat persists in the South and Southeast while building into the Southwest. Overnight lows will be so warm that, when combined with oppressive dew points, little-to-no relief from the scorching daytime highs will be available. Read More >

Current conditions at

CHEHALIS (CLSW1)

Lat: 46.61°NLon: 122.90833°WElev: 262.0ft.

NA

63°F

17°C

Humidity 74%
Wind Speed W 2 MPH
Barometer NA
Dewpoint 55°F (13°C)
Visibility NA
Last update 18 Aug 09:09 PM PDT
Extended Forecast for

3 Miles E Napavine WA

  • Tonight

    Tonight: Increasing clouds, with a low around 51. Calm wind.

    Low: 51 °F

    Increasing
    Clouds

  • Wednesday

    Wednesday: Cloudy through mid morning, then gradual clearing, with a high near 78. Calm wind.

    High: 78 °F

    Gradual
    Clearing

  • Wednesday Night

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

    Low: 52 °F

    Partly Cloudy

  • Thursday

    Thursday: Mostly sunny, with a high near 83. Calm wind.

    High: 83 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 54. Calm wind.

    Low: 54 °F

    Partly Cloudy

  • Friday

    Friday: Mostly cloudy, with a high near 79.

    High: 79 °F

    Mostly Cloudy

  • Friday Night

    Friday Night: A 20 percent chance of rain after 11pm.  Partly cloudy, with a low around 53.

    Low: 53 °F

    Slight Chance
    Rain

  • Saturday

    Saturday: A slight chance of rain before 11am.  Cloudy, with a high near 69.

    High: 69 °F

    Slight Chance
    Rain then
    Cloudy

  • Saturday Night

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

    Low: 52 °F

    Mostly Cloudy

Detailed Forecast

Tonight
Increasing clouds, with a low around 51. Calm wind.
Wednesday
Cloudy through mid morning, then gradual clearing, with a high near 78. Calm wind.
Wednesday Night
Partly cloudy, with a low around 52. Calm wind.
Thursday
Mostly sunny, with a high near 83. Calm wind.
Thursday Night
Partly cloudy, with a low around 54. Calm wind.
Friday
Mostly cloudy, with a high near 79.
Friday Night
A 20 percent chance of rain after 11pm. Partly cloudy, with a low around 53.
Saturday
A slight chance of rain before 11am. Cloudy, with a high near 69.
Saturday Night
Mostly cloudy, with a low around 52.
Sunday
Mostly cloudy, with a high near 74.
Sunday Night
Mostly clear, with a low around 51.
Monday
Partly sunny, with a high near 78.
Monday Night
Partly cloudy, with a low around 51.
Tuesday
Partly sunny, with a high near 76.
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ABOUT THIS FORECAST

 
Point Forecast:
3 Miles E Napavine WA
 46.57°N 122.83°W (Elev. 400 ft)
11:26 am PDT Aug 18, 2026
9pm PDT Aug 18, 2026-6pm PDT Aug 25, 2026
 
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Additional Resources

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Hourly Weather Forecast

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