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

53°F

12°C

Humidity 73%
Wind Speed S 0 MPH
Barometer NA
Dewpoint 44°F (7°C)
Visibility NA
Last update 21 Apr 02:09 AM PDT
Extended Forecast for

11 Miles NW Mount St Helens WA

  • Overnight

    Overnight: A 50 percent chance of rain. Mostly cloudy, with a low around 42. Light northwest wind.

    Low: 42 °F

    Chance Rain

  • Tuesday

    Tuesday: Rain. High near 44. Calm wind becoming west northwest 5 to 8 mph in the morning. Chance of precipitation is 90%. New precipitation amounts between a tenth and quarter of an inch possible.

    High: 44 °F

    Rain

  • Tuesday Night

    Tuesday Night: Rain. Snow level 5600 feet lowering to 4600 feet after midnight . Low around 37. West northwest wind around 9 mph. Chance of precipitation is 90%. New precipitation amounts between a quarter and half of an inch possible.

    Low: 37 °F

    Rain

  • Wednesday

    Wednesday: Rain before 8am, then rain, possibly mixed with snow between 8am and 2pm, then rain after 2pm. Snow level 4300 feet. High near 40. West southwest wind 10 to 14 mph, with gusts as high as 22 mph. Chance of precipitation is 90%. Little or no snow accumulation expected.

    High: 40 °F

    Rain/Snow

  • Wednesday Night

    Wednesday Night: A chance of rain before 8pm, then a chance of rain and snow. Snow level 4100 feet. Mostly cloudy, with a low around 36. West southwest wind 5 to 14 mph, with gusts as high as 21 mph. Chance of precipitation is 50%. Little or no snow accumulation expected.

    Low: 36 °F

    Chance
    Rain/Snow
    then Slight
    Chance
    Rain/Snow

  • Thursday

    Thursday: A slight chance of rain and snow before 11am. Snow level 3800 feet rising to 4700 feet in the afternoon. Partly sunny, with a high near 48. Chance of precipitation is 20%.

    High: 48 °F

    Slight Chance
    Rain/Snow
    then Mostly
    Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 36.

    Low: 36 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 56.

    High: 56 °F

    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 40. Breezy.

    Low: 40 °F

    Mostly Clear
    and Breezy
    then Mostly
    Clear

Detailed Forecast

Overnight
A 50 percent chance of rain. Mostly cloudy, with a low around 42. Light northwest wind.
Tuesday
Rain. High near 44. Calm wind becoming west northwest 5 to 8 mph in the morning. Chance of precipitation is 90%. New precipitation amounts between a tenth and quarter of an inch possible.
Tuesday Night
Rain. Snow level 5600 feet lowering to 4600 feet after midnight . Low around 37. West northwest wind around 9 mph. Chance of precipitation is 90%. New precipitation amounts between a quarter and half of an inch possible.
Wednesday
Rain before 8am, then rain, possibly mixed with snow between 8am and 2pm, then rain after 2pm. Snow level 4300 feet. High near 40. West southwest wind 10 to 14 mph, with gusts as high as 22 mph. Chance of precipitation is 90%. Little or no snow accumulation expected.
Wednesday Night
A chance of rain before 8pm, then a chance of rain and snow. Snow level 4100 feet. Mostly cloudy, with a low around 36. West southwest wind 5 to 14 mph, with gusts as high as 21 mph. Chance of precipitation is 50%. Little or no snow accumulation expected.
Thursday
A slight chance of rain and snow before 11am. Snow level 3800 feet rising to 4700 feet in the afternoon. Partly sunny, with a high near 48. Chance of precipitation is 20%.
Thursday Night
Mostly clear, with a low around 36.
Friday
Sunny, with a high near 56.
Friday Night
Mostly clear, with a low around 40. Breezy.
Saturday
Sunny, with a high near 56.
Saturday Night
Partly cloudy, with a low around 40.
Sunday
A slight chance of rain. Snow level 4700 feet rising to 5400 feet in the afternoon. Mostly sunny, with a high near 54.
Sunday Night
A slight chance of rain. Snow level 5700 feet lowering to 5100 feet after midnight . Partly cloudy, with a low around 40.
Monday
A chance of rain. Snow level 4700 feet rising to 5300 feet in the afternoon. Mostly sunny, with a high near 53.
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 ft)
Last Update:
2:00 am PDT Apr 21, 2026
Forecast Valid:
2am PDT Apr 21, 2026-6pm PDT Apr 27, 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