Current conditions at

CASTLE ROCK (TR950)

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

NA

45°F

7°C

Humidity 80%
Wind Speed SSW 1 MPH
Barometer NA
Dewpoint 39°F (4°C)
Visibility NA
Last update 15 Apr 06:09 PM PDT
Extended Forecast for

11 Miles NW Mount St Helens WA

Winter Storm Warning April 15, 07:01pm until April 16, 05:00am
Click here for hazard details and duration
Winter Storm Warning
  •  
    Winter Storm Warning April 15, 07:01pm until April 16, 05:00am

    NOW until 5:00am Thu

    Winter Storm Warning

  • Tonight

    Low: 28 °F

    Snow Showers
    then Slight
    Chance Snow
    Showers

  • Thursday

    Thursday: A 30 percent chance of snow showers, mainly after 4pm.  Partly sunny, with a high near 38. Light and variable wind becoming west 5 to 10 mph in the morning.  New snow accumulation of less than a half inch possible.

    High: 38 °F

    Partly Sunny
    then Chance
    Snow Showers

  • Thursday Night

    Thursday Night: A 20 percent chance of snow showers before 11pm.  Mostly cloudy, with a low around 30. West wind 5 to 10 mph becoming light west northwest  in the evening.

    Low: 30 °F

    Slight Chance
    Snow Showers
    then Mostly
    Cloudy

  • Friday

    Friday: Partly sunny, with a high near 44. Calm wind.

    High: 44 °F

    Partly Sunny

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 38. Calm wind becoming southeast 5 to 7 mph after midnight.

    Low: 38 °F

    Mostly Cloudy

  • Saturday

    Saturday: Partly sunny, with a high near 53.

    High: 53 °F

    Partly Sunny

  • Saturday Night

    Saturday Night: A 30 percent chance of rain.  Mostly cloudy, with a low around 43.

    Low: 43 °F

    Chance Rain

  • Sunday

    Sunday: A chance of rain.  Mostly cloudy, with a high near 55.

    High: 55 °F

    Chance Rain

Detailed Forecast

Tonight
Snow showers, mainly before midnight. Some thunder is also possible. Low around 28. West wind 5 to 9 mph becoming calm in the evening. Chance of precipitation is 80%. Total nighttime snow accumulation of 1 to 3 inches possible.
Thursday
A 30 percent chance of snow showers, mainly after 4pm. Partly sunny, with a high near 38. Light and variable wind becoming west 5 to 10 mph in the morning. New snow accumulation of less than a half inch possible.
Thursday Night
A 20 percent chance of snow showers before 11pm. Mostly cloudy, with a low around 30. West wind 5 to 10 mph becoming light west northwest in the evening.
Friday
Partly sunny, with a high near 44. Calm wind.
Friday Night
Mostly cloudy, with a low around 38. Calm wind becoming southeast 5 to 7 mph after midnight.
Saturday
Partly sunny, with a high near 53.
Saturday Night
A 30 percent chance of rain. Mostly cloudy, with a low around 43.
Sunday
A chance of rain. Mostly cloudy, with a high near 55.
Sunday Night
A chance of rain before 11pm. Mostly cloudy, with a low around 44.
Monday
A chance of rain, mainly after 11am. Partly sunny, with a high near 59.
Monday Night
A chance of rain. Mostly cloudy, with a low around 44.
Tuesday
A chance of rain. Snow level 5700 feet. Partly sunny, with a high near 50.
Tuesday Night
A chance of rain. Snow level 6000 feet lowering to 5200 feet after midnight . Mostly cloudy, with a low around 42.
Wednesday
Rain and snow likely. Snow level 4800 feet. Mostly cloudy, with a high near 44.
Basemap Options
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ABOUT THIS FORECAST

 
Point Forecast:
11 Miles NW Mount St Helens WA
 46.31°N 122.34°W (Elev. 3691 ft)
6:41 pm PDT Apr 15, 2026
7pm PDT Apr 15, 2026-6pm PDT Apr 22, 2026
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database