National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Hazardous Weather Conditions

Current conditions at

CASTLE ROCK (TR950)

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

NA

39°F

4°C

Humidity 100%
Wind Speed ESE 0 MPH
Barometer NA
Dewpoint 39°F (4°C)
Visibility NA
Last update 15 Apr 05:09 AM PDT
Extended Forecast for

11 Miles NW Mount St Helens WA

Winter Storm Warning April 15, 06:13am until April 16, 05:00am
Click here for hazard details and duration
Winter Storm Warning
  •  
    Winter Storm Warning April 15, 06:13am until April 16, 05:00am

    NOW until 5:00am Thu

    Winter Storm Warning

  • Today

    High: 32 °F

    Chance Snow
    Showers then
    Heavy Snow

  • Tonight

    Tonight: Snow showers likely, mainly before 11pm. Some thunder is also possible. Mostly cloudy, with a low around 27. West wind 5 to 9 mph becoming calm after midnight. Chance of precipitation is 70%. New snow accumulation of 1 to 3 inches possible.

    Low: 27 °F

    Snow Showers
    Likely then
    Slight Chance
    Snow Showers

  • Thursday

    Thursday: A 50 percent chance of snow showers, mainly after 11am. Partly sunny, with a high near 38. Light west wind increasing to 5 to 10 mph in the afternoon. Winds could gust as high as 18 mph. Little or no snow accumulation expected.

    High: 38 °F

    Chance Snow
    Showers

  • Thursday Night

    Thursday Night: A 30 percent chance of snow showers before 11pm. Mostly cloudy, with a low around 32. West wind 6 to 11 mph becoming light west northwest after midnight. Winds could gust as high as 18 mph. Little or no snow accumulation expected.

    Low: 32 °F

    Chance Snow
    Showers then
    Mostly Cloudy

  • Friday

    Friday: Partly sunny, with a high near 43. Calm wind.

    High: 43 °F

    Partly Sunny

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 35.

    Low: 35 °F

    Mostly Cloudy

  • Saturday

    Saturday: A 20 percent chance of rain after 11am. Snow level 3900 feet rising to 5300 feet in the afternoon. Partly sunny, with a high near 52.

    High: 52 °F

    Slight Chance
    Rain

  • Saturday Night

    Saturday Night: A chance of rain. Mostly cloudy, with a low around 42.

    Low: 42 °F

    Chance Rain

Detailed Forecast

Today
Snow showers, mainly after noon. The snow could be heavy at times. Some thunder is also possible. High near 32. West northwest wind 6 to 14 mph, with gusts as high as 23 mph. Chance of precipitation is 90%. Total daytime snow accumulation of 3 to 5 inches possible.
Tonight
Snow showers likely, mainly before 11pm. Some thunder is also possible. Mostly cloudy, with a low around 27. West wind 5 to 9 mph becoming calm after midnight. Chance of precipitation is 70%. New snow accumulation of 1 to 3 inches possible.
Thursday
A 50 percent chance of snow showers, mainly after 11am. Partly sunny, with a high near 38. Light west wind increasing to 5 to 10 mph in the afternoon. Winds could gust as high as 18 mph. Little or no snow accumulation expected.
Thursday Night
A 30 percent chance of snow showers before 11pm. Mostly cloudy, with a low around 32. West wind 6 to 11 mph becoming light west northwest after midnight. Winds could gust as high as 18 mph. Little or no snow accumulation expected.
Friday
Partly sunny, with a high near 43. Calm wind.
Friday Night
Mostly cloudy, with a low around 35.
Saturday
A 20 percent chance of rain after 11am. Snow level 3900 feet rising to 5300 feet in the afternoon. Partly sunny, with a high near 52.
Saturday Night
A chance of rain. Mostly cloudy, with a low around 42.
Sunday
Rain likely. Snow level 6200 feet lowering to 5300 feet. Mostly cloudy, with a high near 54.
Sunday Night
A chance of rain. Mostly cloudy, with a low around 44.
Monday
A chance of rain. Snow level 5800 feet. Partly sunny, with a high near 57.
Monday Night
A chance of rain and snow. Mostly cloudy, with a low around 43.
Tuesday
A chance of rain and snow. Snow level 5600 feet. Partly sunny, with a high near 54.
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:
5:41 am PDT Apr 15, 2026
Forecast Valid:
6am PDT Apr 15, 2026-6pm PDT Apr 21, 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