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

CASTLE ROCK (TR950)

Lat: 46.27139°NLon: 122.89194°WElev: 213.0ft.

NA

50°F

10°C

Humidity 95%
Wind Speed SW 0 MPH
Barometer NA
Dewpoint 49°F (9°C)
Visibility NA
Last update 20 Nov 10:09 AM PST
Extended Forecast for

11 Miles NW Mount St Helens WA

  • Today

    Today: A 40 percent chance of rain before noon. Snow level 4100 feet. Mostly sunny, with a high near 38. Light south southeast wind.

    High: 38 °F

    Chance Rain

  • Tonight

    Tonight: Partly cloudy, with a low around 34. Light and variable wind becoming southeast around 6 mph in the evening.

    Low: 34 °F

    Partly Cloudy

  • Friday

    Friday: A 20 percent chance of rain after 10am. Snow level 4300 feet rising to 5100 feet in the afternoon. Partly sunny, with a high near 41. East southeast wind around 6 mph becoming calm in the morning.

    High: 41 °F

    Slight Chance
    Rain

  • Friday Night

    Friday Night: A 40 percent chance of rain. Mostly cloudy, with a low around 38. Calm wind becoming southeast around 5 mph in the evening.

    Low: 38 °F

    Chance Rain

  • Saturday

    Saturday: A 40 percent chance of rain. Patchy fog after 4pm. Otherwise, partly sunny, with a high near 46. East southeast wind around 5 mph becoming calm in the morning.

    High: 46 °F

    Chance Rain
    and Patchy
    Fog

  • Saturday Night

    Saturday Night: A 40 percent chance of rain. Patchy fog before 7pm. Otherwise, mostly cloudy, with a low around 39.

    Low: 39 °F

    Chance Rain
    and Patchy
    Fog

  • Sunday

    Sunday: Rain, mainly after 10am. High near 41. Chance of precipitation is 80%.

    High: 41 °F

    Rain

  • Sunday Night

    Sunday Night: Snow, possibly mixed with rain. Snow level 5100 feet lowering to 4100 feet after midnight . Cloudy, with a low around 34.

    Low: 34 °F

    Rain/Snow

  • Monday

    Monday: Snow, mainly before 4pm. Mostly cloudy, with a high near 35.

    High: 35 °F

    Snow

Detailed Forecast

Today
A 40 percent chance of rain before noon. Snow level 4100 feet. Mostly sunny, with a high near 38. Light south southeast wind.
Tonight
Partly cloudy, with a low around 34. Light and variable wind becoming southeast around 6 mph in the evening.
Friday
A 20 percent chance of rain after 10am. Snow level 4300 feet rising to 5100 feet in the afternoon. Partly sunny, with a high near 41. East southeast wind around 6 mph becoming calm in the morning.
Friday Night
A 40 percent chance of rain. Mostly cloudy, with a low around 38. Calm wind becoming southeast around 5 mph in the evening.
Saturday
A 40 percent chance of rain. Patchy fog after 4pm. Otherwise, partly sunny, with a high near 46. East southeast wind around 5 mph becoming calm in the morning.
Saturday Night
A 40 percent chance of rain. Patchy fog before 7pm. Otherwise, mostly cloudy, with a low around 39.
Sunday
Rain, mainly after 10am. High near 41. Chance of precipitation is 80%.
Sunday Night
Snow, possibly mixed with rain. Snow level 5100 feet lowering to 4100 feet after midnight . Cloudy, with a low around 34.
Monday
Snow, mainly before 4pm. Mostly cloudy, with a high near 35.
Monday Night
A chance of snow before 10pm. Mostly cloudy, with a low around 30.
Tuesday
A slight chance of snow. Partly sunny, with a high near 36.
Tuesday Night
A slight chance of snow. Mostly cloudy, with a low around 31.
Wednesday
A chance of snow. Mostly cloudy, with a high near 36.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
11 Miles NW Mount St Helens WA
 46.31°N 122.34°W (Elev. 3691 ft)
Last Update:
10:41 am PST Nov 20, 2025
Forecast Valid:
11am PST Nov 20, 2025-6pm PST Nov 26, 2025
 
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Additional Resources

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation