Thunderstorms and Heavy Rainfall in the Plains; Hazardous Heat in the South and Southeast

Severe thunderstorms will be possible across the northern/central Plains through Tuesday afternoon and from the central Plains to the Mid-Mississippi Valley Tuesday evening through Wednesday morning. Storms may produce large hail and damaging wind gusts, and heavy rainfall may lead to scattered instances of flash flooding. Meanwhile, hazardous heat persists across the South and Southeast. Read More >

Current conditions at

DW8787 CHEHALIS (D8787)

Lat: 46.64646°NLon: 122.8388°WElev: 550.0ft.

NA

60°F

16°C

Humidity 90%
Wind Speed W 0 MPH
Barometer 30.09 in (1018.96 mb)
Dewpoint 57°F (14°C)
Visibility NA
Last update 17 Aug 10:45 PM PDT
Extended Forecast for

Mossyrock WA

  • Tonight

    Tonight: Patchy fog after midnight.  Otherwise, increasing clouds, with a low around 52. Calm wind.

    Low: 52 °F

    Patchy Fog

  • Tuesday

    Tuesday: Patchy fog before 10am.  Otherwise, cloudy through mid morning, then gradual clearing, with a high near 78. Light and variable wind.

    High: 78 °F

    Patchy Fog
    then Mostly
    Sunny

  • Tuesday Night

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

    Low: 51 °F

    Increasing
    Clouds

  • Wednesday

    Wednesday: Cloudy, then gradually becoming mostly sunny, with a high near 76. Calm wind.

    High: 76 °F

    Decreasing
    Clouds

  • 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 82.

    High: 82 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 55.

    Low: 55 °F

    Partly Cloudy

  • Friday

    Friday: Mostly cloudy, with a high near 77.

    High: 77 °F

    Mostly Cloudy

  • Friday Night

    Friday Night: A slight chance of rain.  Mostly cloudy, with a low around 53.

    Low: 53 °F

    Slight Chance
    Rain

Detailed Forecast

Tonight
Patchy fog after midnight. Otherwise, increasing clouds, with a low around 52. Calm wind.
Tuesday
Patchy fog before 10am. Otherwise, cloudy through mid morning, then gradual clearing, with a high near 78. Light and variable wind.
Tuesday Night
Increasing clouds, with a low around 51. Calm wind.
Wednesday
Cloudy, then gradually becoming mostly sunny, with a high near 76. Calm wind.
Wednesday Night
Partly cloudy, with a low around 52. Calm wind.
Thursday
Mostly sunny, with a high near 82.
Thursday Night
Partly cloudy, with a low around 55.
Friday
Mostly cloudy, with a high near 77.
Friday Night
A slight chance of rain. Mostly cloudy, with a low around 53.
Saturday
A slight chance of rain. Cloudy, with a high near 69.
Saturday Night
A slight chance of rain. Mostly cloudy, with a low around 51.
Sunday
A slight chance of rain. Mostly cloudy, with a high near 73.
Sunday Night
Partly cloudy, with a low around 51.
Monday
Mostly sunny, with a high near 76.
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ABOUT THIS FORECAST

 
Point Forecast:
Mossyrock WA
 46.53°N 122.47°W (Elev. 676 ft)
11:26 am PDT Aug 17, 2026
11pm PDT Aug 17, 2026-6pm PDT Aug 24, 2026
 
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Additional Resources

Radar & Satellite Image

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Hourly Weather Forecast

National Digital Forecast Database