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Current conditions at

CASTLE ROCK (TR950)

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

NA

45°F

7°C

Humidity 55%
Wind Speed SSE 3 MPH
Barometer NA
Dewpoint 30°F (-1°C)
Visibility NA
Last update 26 Jan 02:09 PM PST
Extended Forecast for

11 Miles NW Mount St Helens WA

  • This Afternoon

    This Afternoon: Partly sunny, with a high near 40. South southeast wind around 6 mph.

    High: 40 °F

    Partly Sunny

  • Tonight

    Tonight: Mostly cloudy, with a low around 37. Southeast wind 9 to 14 mph, with gusts as high as 18 mph.

    Low: 37 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: Rain and snow likely after 4pm. Snow level 3900 feet. Mostly cloudy, with a high near 43. Breezy, with a southeast wind 11 to 15 mph, with gusts as high as 21 mph. Chance of precipitation is 60%. Little or no snow accumulation expected.

    High: 43 °F

    Mostly Cloudy
    and Breezy
    then
    Rain/Snow
    Likely

  • Tuesday Night

    Tuesday Night: Rain, possibly mixed with snow. Snow level 4200 feet. Low around 36. South southeast wind around 14 mph, with gusts as high as 20 mph. Chance of precipitation is 80%. Little or no snow accumulation expected.

    Low: 36 °F

    Rain/Snow

  • Wednesday

    Wednesday: Rain. Snow level 4800 feet. High near 40. South southeast wind around 11 mph, with gusts as high as 20 mph. Chance of precipitation is 90%. New precipitation amounts between a quarter and half of an inch possible.

    High: 40 °F

    Rain

  • Wednesday Night

    Wednesday Night: Rain. Snow level 5300 feet. Low around 40. Chance of precipitation is 100%.

    Low: 40 °F

    Rain

  • Thursday

    Thursday: Rain. Snow level 5800 feet. High near 42. Chance of precipitation is 100%.

    High: 42 °F

    Rain

  • Thursday Night

    Thursday Night: Rain. Mostly cloudy, with a low around 41.

    Low: 41 °F

    Rain

  • Friday

    Friday: Rain. Mostly cloudy, with a high near 46.

    High: 46 °F

    Rain

Detailed Forecast

This Afternoon
Partly sunny, with a high near 40. South southeast wind around 6 mph.
Tonight
Mostly cloudy, with a low around 37. Southeast wind 9 to 14 mph, with gusts as high as 18 mph.
Tuesday
Rain and snow likely after 4pm. Snow level 3900 feet. Mostly cloudy, with a high near 43. Breezy, with a southeast wind 11 to 15 mph, with gusts as high as 21 mph. Chance of precipitation is 60%. Little or no snow accumulation expected.
Tuesday Night
Rain, possibly mixed with snow. Snow level 4200 feet. Low around 36. South southeast wind around 14 mph, with gusts as high as 20 mph. Chance of precipitation is 80%. Little or no snow accumulation expected.
Wednesday
Rain. Snow level 4800 feet. High near 40. South southeast wind around 11 mph, with gusts as high as 20 mph. Chance of precipitation is 90%. New precipitation amounts between a quarter and half of an inch possible.
Wednesday Night
Rain. Snow level 5300 feet. Low around 40. Chance of precipitation is 100%.
Thursday
Rain. Snow level 5800 feet. High near 42. Chance of precipitation is 100%.
Thursday Night
Rain. Mostly cloudy, with a low around 41.
Friday
Rain. Mostly cloudy, with a high near 46.
Friday Night
Rain likely, mainly before 10pm. Mostly cloudy, with a low around 43.
Saturday
A chance of rain. Mostly cloudy, with a high near 50.
Saturday Night
A chance of rain. Mostly cloudy, with a low around 43.
Sunday
Rain. Snow level 5500 feet. Mostly cloudy, with a high near 46.
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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 pm PST Jan 26, 2026
Forecast Valid:
2pm PST Jan 26, 2026-6pm PST Feb 1, 2026
 
Forecast Discussion
 
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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

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation