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 98%
Wind Speed NNE 0 MPH
Barometer NA
Dewpoint 49°F (9°C)
Visibility NA
Last update 11 May 10:09 PM PDT
Extended Forecast for

11 Miles NW Mount St Helens WA

  • Tonight

    Tonight: Showers likely, mainly after 4am. Snow level 4600 feet. Mostly cloudy, with a low around 38. Calm wind. Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch possible.

    Low: 38 °F

    Showers
    Likely

  • Monday

    Monday: Showers, with thunderstorms also possible after 2pm. Snow level 4300 feet rising to 5100 feet in the afternoon. Steady temperature around 40. Calm wind becoming west southwest around 6 mph in the morning. Chance of precipitation is 90%. New rainfall amounts between a quarter and half of an inch possible.

    High: 40 °F

    Showers

  • Monday Night

    Monday Night: Showers and possibly a thunderstorm. Snow level 5300 feet lowering to 4700 feet after midnight . Low around 40. Southwest wind 5 to 7 mph. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    Low: 40 °F

    Showers then
    Chance
    Showers

  • Tuesday

    Tuesday: A 50 percent chance of showers. Snow level 5100 feet rising to 6300 feet in the afternoon. Mostly cloudy, with a high near 44. West southwest wind 3 to 7 mph.

    High: 44 °F

    Chance
    Showers

  • Tuesday Night

    Tuesday Night: A 40 percent chance of showers. Snow level 6600 feet lowering to 5100 feet after midnight . Cloudy, with a low around 39. West southwest wind around 8 mph.

    Low: 39 °F

    Chance
    Showers

  • Wednesday

    Wednesday: A 40 percent chance of showers, mainly before 11am. Snow level 4700 feet. Mostly cloudy, with a high near 44.

    High: 44 °F

    Chance
    Showers

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 36.

    Low: 36 °F

    Mostly Cloudy

  • Thursday

    Thursday: Mostly cloudy, with a high near 47.

    High: 47 °F

    Mostly Cloudy

  • Thursday Night

    Thursday Night: A chance of showers. Snow level 5600 feet. Mostly cloudy, with a low around 40.

    Low: 40 °F

    Chance
    Showers

Detailed Forecast

Tonight
Showers likely, mainly after 4am. Snow level 4600 feet. Mostly cloudy, with a low around 38. Calm wind. Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch possible.
Monday
Showers, with thunderstorms also possible after 2pm. Snow level 4300 feet rising to 5100 feet in the afternoon. Steady temperature around 40. Calm wind becoming west southwest around 6 mph in the morning. Chance of precipitation is 90%. New rainfall amounts between a quarter and half of an inch possible.
Monday Night
Showers and possibly a thunderstorm. Snow level 5300 feet lowering to 4700 feet after midnight . Low around 40. Southwest wind 5 to 7 mph. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Tuesday
A 50 percent chance of showers. Snow level 5100 feet rising to 6300 feet in the afternoon. Mostly cloudy, with a high near 44. West southwest wind 3 to 7 mph.
Tuesday Night
A 40 percent chance of showers. Snow level 6600 feet lowering to 5100 feet after midnight . Cloudy, with a low around 39. West southwest wind around 8 mph.
Wednesday
A 40 percent chance of showers, mainly before 11am. Snow level 4700 feet. Mostly cloudy, with a high near 44.
Wednesday Night
Mostly cloudy, with a low around 36.
Thursday
Mostly cloudy, with a high near 47.
Thursday Night
A chance of showers. Snow level 5600 feet. Mostly cloudy, with a low around 40.
Friday
A chance of showers. Snow level 5300 feet rising to 6300 feet in the afternoon. Partly sunny, with a high near 48.
Friday Night
Showers likely. Mostly cloudy, with a low around 43.
Saturday
Showers likely. Snow level 5600 feet. Mostly cloudy, with a high near 46.
Saturday Night
A chance of rain and snow showers. Snow level 5800 feet lowering to 4800 feet after midnight . Mostly cloudy, with a low around 39.
Sunday
A chance of rain and snow showers. Snow level 4700 feet rising to 5600 feet in the afternoon. Partly sunny, with a high near 46.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
11 Miles NW Mount St Helens WA
 46.31°N 122.34°W (Elev. 3691 ft)
Last Update:
10:51 pm PDT May 11, 2025
Forecast Valid:
11pm PDT May 11, 2025-6pm PDT May 18, 2025
 
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Additional Resources

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High Temperature

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Chance of Precipitation