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

51°F

11°C

Humidity 99%
Wind Speed S 3 MPH
Barometer NA
Dewpoint 51°F (11°C)
Visibility NA
Last update 22 Apr 03:09 AM PDT
Extended Forecast for

11 Miles NW Mount St Helens WA

  • Overnight

    Overnight: Showers. Snow level 5000 feet. Steady temperature around 40. West wind 11 to 14 mph, with gusts as high as 20 mph. Chance of precipitation is 90%. New precipitation amounts between a tenth and quarter of an inch possible.

    Low: 40 °F

    Showers

  • Wednesday

    Wednesday: Rain before 4pm, then a chance of rain after 5pm. Snow level 4700 feet. High near 40. Breezy, with a west southwest wind around 15 mph, with gusts as high as 25 mph. Chance of precipitation is 100%. New precipitation amounts between a half and three quarters of an inch possible.

    High: 40 °F

    Rain and
    Breezy

  • Wednesday Night

    Wednesday Night: A slight chance of rain and snow before 10pm. Mostly cloudy, with a low around 35. Southwest wind 5 to 14 mph, with gusts as high as 20 mph. Chance of precipitation is 20%.

    Low: 35 °F

    Slight Chance
    Rain/Snow
    then Mostly
    Cloudy

  • Thursday

    Thursday: A 20 percent chance of snow before 11am. Snow level rising to 4400 feet in the afternoon. Partly sunny, with a high near 46. Light and variable wind becoming west northwest 5 to 7 mph in the afternoon.

    High: 46 °F

    Slight Chance
    Snow then
    Mostly Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 36. Northwest wind 5 to 9 mph becoming light and variable in the evening.

    Low: 36 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 52.

    High: 52 °F

    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 39.

    Low: 39 °F

    Mostly Clear

  • Saturday

    Saturday: Mostly sunny, with a high near 54.

    High: 54 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: A slight chance of rain before 11pm. Snow level 4800 feet lowering to 4200 feet after midnight . Partly cloudy, with a low around 38.

    Low: 38 °F

    Slight Chance
    Rain then
    Partly Cloudy

Detailed Forecast

Overnight
Showers. Snow level 5000 feet. Steady temperature around 40. West wind 11 to 14 mph, with gusts as high as 20 mph. Chance of precipitation is 90%. New precipitation amounts between a tenth and quarter of an inch possible.
Wednesday
Rain before 4pm, then a chance of rain after 5pm. Snow level 4700 feet. High near 40. Breezy, with a west southwest wind around 15 mph, with gusts as high as 25 mph. Chance of precipitation is 100%. New precipitation amounts between a half and three quarters of an inch possible.
Wednesday Night
A slight chance of rain and snow before 10pm. Mostly cloudy, with a low around 35. Southwest wind 5 to 14 mph, with gusts as high as 20 mph. Chance of precipitation is 20%.
Thursday
A 20 percent chance of snow before 11am. Snow level rising to 4400 feet in the afternoon. Partly sunny, with a high near 46. Light and variable wind becoming west northwest 5 to 7 mph in the afternoon.
Thursday Night
Mostly clear, with a low around 36. Northwest wind 5 to 9 mph becoming light and variable in the evening.
Friday
Sunny, with a high near 52.
Friday Night
Mostly clear, with a low around 39.
Saturday
Mostly sunny, with a high near 54.
Saturday Night
A slight chance of rain before 11pm. Snow level 4800 feet lowering to 4200 feet after midnight . Partly cloudy, with a low around 38.
Sunday
A chance of rain after 11am. Snow level 4000 feet rising to 4700 feet in the afternoon. Mostly sunny, with a high near 51.
Sunday Night
A chance of rain. Snow level 4900 feet. Mostly cloudy, with a low around 38.
Monday
A chance of rain. Snow level 4400 feet rising to 5100 feet in the afternoon. Mostly sunny, with a high near 52.
Monday Night
A slight chance of rain. Snow level 5500 feet lowering to 4900 feet after midnight . Partly cloudy, with a low around 39.
Tuesday
A slight chance of rain. Snow level 4600 feet rising to 5300 feet in the afternoon. Mostly sunny, with a high near 55.
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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:
2:41 am PDT Apr 22, 2026
Forecast Valid:
3am PDT Apr 22, 2026-6pm PDT Apr 28, 2026
 
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Additional Resources

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