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

43°F

6°C

Humidity 100%
Wind Speed E 0 MPH
Barometer NA
Dewpoint 43°F (6°C)
Visibility NA
Last update 17 Apr 08:09 AM PDT
Extended Forecast for

11 Miles NW Mount St Helens WA

  • Today

    Today: Increasing clouds, with a high near 44. Light and variable wind.

    High: 44 °F

    Increasing
    Clouds

  • Tonight

    Tonight: Mostly cloudy, with a low around 38. Light and variable wind becoming east southeast 5 to 9 mph in the evening.

    Low: 38 °F

    Mostly Cloudy

  • Saturday

    Saturday: Partly sunny, with a high near 56. Southeast wind 6 to 9 mph.

    High: 56 °F

    Partly Sunny

  • Saturday Night

    Saturday Night: A 20 percent chance of showers after 11pm. Mostly cloudy, with a low around 46. South wind 6 to 8 mph becoming east southeast after midnight.

    Low: 46 °F

    Slight Chance
    Showers

  • Sunday

    Sunday: A 20 percent chance of showers. Mostly cloudy, with a high near 60. East southeast wind 6 to 9 mph becoming south in the afternoon.

    High: 60 °F

    Slight Chance
    Showers

  • Sunday Night

    Sunday Night: A 20 percent chance of showers before 11pm. Mostly cloudy, with a low around 47.

    Low: 47 °F

    Slight Chance
    Showers then
    Mostly Cloudy

  • Monday

    Monday: A 20 percent chance of showers after 11am. Mostly cloudy, with a high near 62.

    High: 62 °F

    Slight Chance
    Showers

  • Monday Night

    Monday Night: A chance of rain. Mostly cloudy, with a low around 44.

    Low: 44 °F

    Chance Rain

  • Tuesday

    Tuesday: Rain likely. Mostly cloudy, with a high near 49.

    High: 49 °F

    Rain Likely

Detailed Forecast

Today
Increasing clouds, with a high near 44. Light and variable wind.
Tonight
Mostly cloudy, with a low around 38. Light and variable wind becoming east southeast 5 to 9 mph in the evening.
Saturday
Partly sunny, with a high near 56. Southeast wind 6 to 9 mph.
Saturday Night
A 20 percent chance of showers after 11pm. Mostly cloudy, with a low around 46. South wind 6 to 8 mph becoming east southeast after midnight.
Sunday
A 20 percent chance of showers. Mostly cloudy, with a high near 60. East southeast wind 6 to 9 mph becoming south in the afternoon.
Sunday Night
A 20 percent chance of showers before 11pm. Mostly cloudy, with a low around 47.
Monday
A 20 percent chance of showers after 11am. Mostly cloudy, with a high near 62.
Monday Night
A chance of rain. Mostly cloudy, with a low around 44.
Tuesday
Rain likely. Mostly cloudy, with a high near 49.
Tuesday Night
Rain likely, mainly before 11pm. Mostly cloudy, with a low around 41.
Wednesday
Rain likely. Snow level 5200 feet. Mostly cloudy, with a high near 44.
Wednesday Night
A chance of rain and snow. Snow level 5200 feet lowering to 4200 feet after midnight . Mostly cloudy, with a low around 37.
Thursday
A chance of rain and snow. Snow level 4000 feet rising to 4600 feet in the afternoon. Partly sunny, with a high near 44.
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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:
8:41 am PDT Apr 17, 2026
Forecast Valid:
8am PDT Apr 17, 2026-6pm PDT Apr 23, 2026
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation