National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Flooding Possible in the Southwest U.S.; Coastal Storm to Impact the East

Heavy to excessive rainfall is expected today into Wednesday over New Mexico into far west Texas. Flash flooding and debris flows in wildfire burn areas will be possible. A strong coastal storm will develop off the Mid-Atlantic coast Wednesday, intensifying toward southern New England this weekend. Significant coastal flooding, strong rip currents, and beach erosion from high surf expected. Read More >

Current conditions at

DW8787 CHEHALIS (D8787)

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

NA

60°F

16°C

Humidity 78%
Wind Speed WSW 0 MPH
Barometer 30.06 in (1017.95 mb)
Dewpoint 53°F (12°C)
Visibility NA
Last update 22 Sep 07:00 PM PDT
Extended Forecast for

3 Miles ESE Mossyrock WA

  • Tonight

    Tonight: Partly cloudy, with a low around 46. Calm wind.

    Low: 46 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Partly sunny, with a high near 64. Calm wind.

    High: 64 °F

    Partly Sunny

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 47. Calm wind.

    Low: 47 °F

    Mostly Cloudy

  • Thursday

    Thursday: Mostly cloudy, with a high near 65. Calm wind.

    High: 65 °F

    Mostly Cloudy

  • Thursday Night

    Thursday Night: Rain. Low around 49. Calm wind. Chance of precipitation is 90%. New precipitation amounts between a quarter and half of an inch possible.

    Low: 49 °F

    Rain

  • Friday

    Friday: Rain before 11am, then showers and possibly a thunderstorm after 11am. High near 56. Chance of precipitation is 90%. New rainfall amounts between a quarter and half of an inch possible.

    High: 56 °F

    Showers

  • Friday Night

    Friday Night: A 40 percent chance of rain before 11pm. Mostly cloudy, with a low around 45.

    Low: 45 °F

    Chance Rain
    then Mostly
    Cloudy

  • Saturday

    Saturday: Partly sunny, with a high near 59.

    High: 59 °F

    Partly Sunny

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 44.

    Low: 44 °F

    Mostly Cloudy

Detailed Forecast

Tonight
Partly cloudy, with a low around 46. Calm wind.
Wednesday
Partly sunny, with a high near 64. Calm wind.
Wednesday Night
Mostly cloudy, with a low around 47. Calm wind.
Thursday
Mostly cloudy, with a high near 65. Calm wind.
Thursday Night
Rain. Low around 49. Calm wind. Chance of precipitation is 90%. New precipitation amounts between a quarter and half of an inch possible.
Friday
Rain before 11am, then showers and possibly a thunderstorm after 11am. High near 56. Chance of precipitation is 90%. New rainfall amounts between a quarter and half of an inch possible.
Friday Night
A 40 percent chance of rain before 11pm. Mostly cloudy, with a low around 45.
Saturday
Partly sunny, with a high near 59.
Saturday Night
Mostly cloudy, with a low around 44.
Sunday
Mostly cloudy, with a high near 61.
Sunday Night
A slight chance of rain. Mostly cloudy, with a low around 45.
Monday
A slight chance of rain. Mostly cloudy, with a high near 61.
Monday Night
A chance of rain. Mostly cloudy, with a low around 47.
Tuesday
A chance of rain. Mostly cloudy, with a high near 62.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
3 Miles ESE Mossyrock WA
 46.52°N 122.43°W (Elev. 830 ft)
Last Update:
2:39 pm PDT Sep 22, 2026
Forecast Valid:
7pm PDT Sep 22, 2026-6pm PDT Sep 29, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

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Hourly Weather Forecast

National Digital Forecast Database

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation