Heat Persists in the South Central U.S. and Southwest; Heavy rains in the Desert Southwest and Central Plains

Sweltering heat remains across the South-Central Plains, Lower/Middle Mississippi Valley, and the Southwest this week with limited nighttime relief. Thunderstorms will bring heavy rainfall leading to localized flash flooding in portions of the Desert Southwest and central Plains. Isolated strong to severe thunderstorms are possible across portions of the central Plains into the Northeast. Read More >

Current conditions at

DW8787 CHEHALIS (D8787)

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

NA

51°F

11°C

Humidity 94%
Wind Speed S 0 MPH
Barometer 30.24 in (1024.04 mb)
Dewpoint 49°F (9°C)
Visibility NA
Last update 09 Sep 01:30 AM PDT
Extended Forecast for

2 Miles WNW Mossyrock WA

  • Overnight

    Overnight: Mostly clear, with a low around 50. Calm wind.

    Low: 50 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 83. Calm wind.

    High: 83 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 53. Calm wind.

    Low: 53 °F

    Mostly Cloudy

  • Thursday

    Thursday: Patchy fog before 9am.  Otherwise, cloudy, then gradually becoming mostly sunny, with a high near 71. Calm wind becoming west around 5 mph in the afternoon.

    High: 71 °F

    Patchy Fog
    then Mostly
    Cloudy

  • Thursday Night

    Thursday Night: Patchy fog between 1am and 4am.  Otherwise, partly cloudy, with a low around 45. West northwest wind around 5 mph becoming calm  in the evening.

    Low: 45 °F

    Partly Cloudy
    then Patchy
    Fog

  • Friday

    Friday: Cloudy, with a high near 66.

    High: 66 °F

    Cloudy

  • Friday Night

    Friday Night: A 20 percent chance of rain after 11pm.  Mostly cloudy, with a low around 47.

    Low: 47 °F

    Slight Chance
    Rain

  • Saturday

    Saturday: A chance of rain, then showers likely and possibly a thunderstorm after 11am.  Patchy fog between 9am and 1pm.  Otherwise, cloudy, with a high near 63.

    High: 63 °F

    Showers
    Likely and
    Patchy Fog

  • Saturday Night

    Saturday Night: A chance of rain, mainly before 11pm.  Mostly cloudy, with a low around 46.

    Low: 46 °F

    Chance Rain

Detailed Forecast

Overnight
Mostly clear, with a low around 50. Calm wind.
Wednesday
Sunny, with a high near 83. Calm wind.
Wednesday Night
Mostly cloudy, with a low around 53. Calm wind.
Thursday
Patchy fog before 9am. Otherwise, cloudy, then gradually becoming mostly sunny, with a high near 71. Calm wind becoming west around 5 mph in the afternoon.
Thursday Night
Patchy fog between 1am and 4am. Otherwise, partly cloudy, with a low around 45. West northwest wind around 5 mph becoming calm in the evening.
Friday
Cloudy, with a high near 66.
Friday Night
A 20 percent chance of rain after 11pm. Mostly cloudy, with a low around 47.
Saturday
A chance of rain, then showers likely and possibly a thunderstorm after 11am. Patchy fog between 9am and 1pm. Otherwise, cloudy, with a high near 63.
Saturday Night
A chance of rain, mainly before 11pm. Mostly cloudy, with a low around 46.
Sunday
A slight chance of rain before 11am. Mostly cloudy, with a high near 68.
Sunday Night
Mostly clear, with a low around 46.
Monday
Mostly sunny, with a high near 72.
Monday Night
Mostly clear, with a low around 47.
Tuesday
Partly sunny, with a high near 74.
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ABOUT THIS FORECAST

 
Point Forecast:
2 Miles WNW Mossyrock WA
 46.55°N 122.54°W (Elev. 400 ft)
12:30 am PDT Sep 9, 2026
1am PDT Sep 9, 2026-6pm PDT Sep 15, 2026
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database