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

15°C

59°F

Humidity 83%
Wind Speed ESE 0 MPH
Barometer NA
Dewpoint 12°C (54°F)
Visibility NA
Last update 08 Oct 08:09 PM PDT
Extended Forecast for

11 Miles NW Mount St Helens WA

  • Tonight

    Tonight: Increasing clouds, with a low around 8. Calm wind.

    Low: 8 °C

    Increasing
    Clouds

  • Friday

    Friday: Rain, mainly before 1pm. High near 10. West northwest wind 11 to 18 km/h, with gusts as high as 32 km/h. Chance of precipitation is 100%. New precipitation amounts between 2.5 and 5 mm possible.

    High: 10 °C

    Rain then
    Chance Rain

  • Friday Night

    Friday Night: A slight chance of showers before 8pm, then a chance of showers after 2am. Mostly cloudy, with a low around 4. West wind around 11 km/h. Chance of precipitation is 40%.

    Low: 4 °C

    Chance
    Showers

  • Saturday

    Saturday: A 50 percent chance of showers. Cloudy, then gradually becoming mostly sunny, with a high near 6. West southwest wind 5 to 8 km/h becoming calm in the morning.

    High: 6 °C

    Chance
    Showers

  • Saturday Night

    Saturday Night: Patchy fog before 8pm. Otherwise, partly cloudy, with a low around 2. Light and variable wind becoming east northeast 6 to 11 km/h after midnight.

    Low: 2 °C

    Patchy Fog
    then Mostly
    Clear

  • Sunday

    Sunday: Sunny, with a high near 9.

    High: 9 °C

    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 3.

    Low: 3 °C

    Mostly Clear

  • Columbus Day

    Columbus Day: Sunny, with a high near 11.

    High: 11 °C

    Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 5.

    Low: 5 °C

    Partly Cloudy

Detailed Forecast

Tonight
Increasing clouds, with a low around 8. Calm wind.
Friday
Rain, mainly before 1pm. High near 10. West northwest wind 11 to 18 km/h, with gusts as high as 32 km/h. Chance of precipitation is 100%. New precipitation amounts between 2.5 and 5 mm possible.
Friday Night
A slight chance of showers before 8pm, then a chance of showers after 2am. Mostly cloudy, with a low around 4. West wind around 11 km/h. Chance of precipitation is 40%.
Saturday
A 50 percent chance of showers. Cloudy, then gradually becoming mostly sunny, with a high near 6. West southwest wind 5 to 8 km/h becoming calm in the morning.
Saturday Night
Patchy fog before 8pm. Otherwise, partly cloudy, with a low around 2. Light and variable wind becoming east northeast 6 to 11 km/h after midnight.
Sunday
Sunny, with a high near 9.
Sunday Night
Mostly clear, with a low around 3.
Columbus Day
Sunny, with a high near 11.
Monday Night
Partly cloudy, with a low around 5.
Tuesday
A slight chance of rain. Partly sunny, with a high near 9.
Tuesday Night
A chance of rain. Mostly cloudy, with a low around 6.
Wednesday
A chance of rain. Partly sunny, with a high near 8.
Wednesday Night
Partly cloudy, with a low around 5.
Thursday
Mostly sunny, with a high near 12.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
11 Miles NW Mount St Helens WA
 46.31°N 122.34°W (Elev. 3691 m)
Last Update:
8:41 pm PDT Oct 8, 2026
Forecast Valid:
9pm PDT Oct 8, 2026-6pm PDT Oct 15, 2026
 
Forecast Discussion
 
Get as KML Get as XML

Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

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