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Current conditions at

CASTLE ROCK (TR950)

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

NA

45°F

7°C

Humidity 100%
Wind Speed ESE 1 MPH
Barometer NA
Dewpoint 45°F (7°C)
Visibility NA
Last update 31 Jan 11:09 PM PST
Extended Forecast for

11 Miles NW Mount St Helens WA

  • Tonight

    Tonight: Rain likely, mainly after 5am. Snow level 5100 feet. Mostly cloudy, with a steady temperature around 43. South southeast wind around 9 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 43 °F

    Rain Likely

  • Sunday

    Sunday: Rain before 10am, then showers after 10am. Snow level 4800 feet. High near 42. South southwest wind around 9 mph. Chance of precipitation is 100%. New precipitation amounts between a quarter and half of an inch possible.

    High: 42 °F

    Rain

  • Sunday Night

    Sunday Night: Showers, mainly before 10pm. Snow level 4500 feet. Low around 38. South southeast wind around 7 mph. Chance of precipitation is 90%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 38 °F

    Showers then
    Showers
    Likely

  • Monday

    Monday: Showers, mainly before 4pm. Snow level 5100 feet rising to 6100 feet in the afternoon. High near 43. South southeast wind 7 to 9 mph. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.

    High: 43 °F

    Showers

  • Monday Night

    Monday Night: A 50 percent chance of showers, mainly before 10pm. Mostly cloudy, with a low around 41. East southeast wind 7 to 9 mph. New precipitation amounts of less than a tenth of an inch possible.

    Low: 41 °F

    Chance
    Showers then
    Slight Chance
    Showers

  • Tuesday

    Tuesday: Partly sunny, with a high near 52.

    High: 52 °F

    Partly Sunny

  • Tuesday Night

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

    Low: 44 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: Mostly sunny, with a high near 56.

    High: 56 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 42.

    Low: 42 °F

    Partly Cloudy

Detailed Forecast

Tonight
Rain likely, mainly after 5am. Snow level 5100 feet. Mostly cloudy, with a steady temperature around 43. South southeast wind around 9 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.
Sunday
Rain before 10am, then showers after 10am. Snow level 4800 feet. High near 42. South southwest wind around 9 mph. Chance of precipitation is 100%. New precipitation amounts between a quarter and half of an inch possible.
Sunday Night
Showers, mainly before 10pm. Snow level 4500 feet. Low around 38. South southeast wind around 7 mph. Chance of precipitation is 90%. New precipitation amounts of less than a tenth of an inch possible.
Monday
Showers, mainly before 4pm. Snow level 5100 feet rising to 6100 feet in the afternoon. High near 43. South southeast wind 7 to 9 mph. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.
Monday Night
A 50 percent chance of showers, mainly before 10pm. Mostly cloudy, with a low around 41. East southeast wind 7 to 9 mph. New precipitation amounts of less than a tenth of an inch possible.
Tuesday
Partly sunny, with a high near 52.
Tuesday Night
Mostly cloudy, with a low around 44.
Wednesday
Mostly sunny, with a high near 56.
Wednesday Night
Partly cloudy, with a low around 42.
Thursday
Sunny, with a high near 56.
Thursday Night
Mostly clear, with a low around 40.
Friday
Mostly sunny, with a high near 53.
Friday Night
A slight chance of rain. Partly cloudy, with a low around 40.
Saturday
A chance of rain. Snow level 5700 feet. Partly sunny, with a high near 49.
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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 pm PST Jan 31, 2026
Forecast Valid:
11pm PST Jan 31, 2026-6pm PST Feb 7, 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