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Current conditions at

CASTLE ROCK (TR950)

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

NA

46°F

8°C

Humidity 100%
Wind Speed ESE 2 MPH
Barometer NA
Dewpoint 46°F (8°C)
Visibility NA
Last update 29 Jan 01:09 AM PST
Extended Forecast for

11 Miles NW Mount St Helens WA

  • Overnight

    Overnight: Rain. Snow level 5300 feet. Low around 39. Breezy, with a south wind around 15 mph, with gusts as high as 23 mph. Chance of precipitation is 100%. New precipitation amounts between a tenth and quarter of an inch possible.

    Low: 39 °F

    Rain and
    Breezy

  • Thursday

    Thursday: Rain. High near 42. South wind 9 to 14 mph, with gusts as high as 22 mph. Chance of precipitation is 90%. New precipitation amounts between a quarter and half of an inch possible.

    High: 42 °F

    Rain

  • Thursday Night

    Thursday Night: Rain before midnight, then a chance of rain after 4am. Snow level 6400 feet lowering to 4900 feet after midnight . Low around 41. South southeast wind around 14 mph, with gusts as high as 20 mph. Chance of precipitation is 80%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 41 °F

    Rain then
    Chance Rain

  • Friday

    Friday: Rain, mainly after 10am. Snow level 5600 feet rising to 7500 feet in the afternoon. High near 44. South wind 11 to 14 mph, with gusts as high as 22 mph. Chance of precipitation is 90%. New precipitation amounts between a quarter and half of an inch possible.

    High: 44 °F

    Rain

  • Friday Night

    Friday Night: Rain, mainly before 10pm. Low around 42. East southeast wind around 9 mph. Chance of precipitation is 80%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 42 °F

    Rain then
    Chance Rain

  • Saturday

    Saturday: A 20 percent chance of rain before 10am. Mostly cloudy, with a high near 51.

    High: 51 °F

    Slight Chance
    Rain then
    Mostly Cloudy

  • Saturday Night

    Saturday Night: A 30 percent chance of rain, mainly after 4am. Mostly cloudy, with a low around 41.

    Low: 41 °F

    Chance Rain

  • Sunday

    Sunday: Rain, mainly after 10am. Snow level 5400 feet. Mostly cloudy, with a high near 43.

    High: 43 °F

    Rain

  • Sunday Night

    Sunday Night: Rain, mainly before 10pm. Snow level 4800 feet. Mostly cloudy, with a low around 38.

    Low: 38 °F

    Rain

Detailed Forecast

Overnight
Rain. Snow level 5300 feet. Low around 39. Breezy, with a south wind around 15 mph, with gusts as high as 23 mph. Chance of precipitation is 100%. New precipitation amounts between a tenth and quarter of an inch possible.
Thursday
Rain. High near 42. South wind 9 to 14 mph, with gusts as high as 22 mph. Chance of precipitation is 90%. New precipitation amounts between a quarter and half of an inch possible.
Thursday Night
Rain before midnight, then a chance of rain after 4am. Snow level 6400 feet lowering to 4900 feet after midnight . Low around 41. South southeast wind around 14 mph, with gusts as high as 20 mph. Chance of precipitation is 80%. New precipitation amounts of less than a tenth of an inch possible.
Friday
Rain, mainly after 10am. Snow level 5600 feet rising to 7500 feet in the afternoon. High near 44. South wind 11 to 14 mph, with gusts as high as 22 mph. Chance of precipitation is 90%. New precipitation amounts between a quarter and half of an inch possible.
Friday Night
Rain, mainly before 10pm. Low around 42. East southeast wind around 9 mph. Chance of precipitation is 80%. New precipitation amounts of less than a tenth of an inch possible.
Saturday
A 20 percent chance of rain before 10am. Mostly cloudy, with a high near 51.
Saturday Night
A 30 percent chance of rain, mainly after 4am. Mostly cloudy, with a low around 41.
Sunday
Rain, mainly after 10am. Snow level 5400 feet. Mostly cloudy, with a high near 43.
Sunday Night
Rain, mainly before 10pm. Snow level 4800 feet. Mostly cloudy, with a low around 38.
Monday
Rain likely, mainly before 10am. Snow level 4400 feet. Mostly cloudy, with a high near 42.
Monday Night
A chance of rain. Snow level 5000 feet rising to 5500 feet after midnight. Mostly cloudy, with a low around 38.
Tuesday
Partly sunny, with a high near 50.
Tuesday Night
Partly cloudy, with a low around 40. Breezy.
Wednesday
Mostly sunny, with a high near 54. Breezy.
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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:
1:21 am PST Jan 29, 2026
Forecast Valid:
1am PST Jan 29, 2026-6pm PST Feb 4, 2026
 
Forecast Discussion
 
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Additional Resources

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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