Spring Weather Hazards Across the U.S. Thursday

Gusty winds and low relative humidity will bring critical fire weather to the central and southern Plains and south Texas Thursday. Widespread high winds will continue to impact the interior Northwest, northern Plains, and Upper Midwest Thursday. A storm tracking across the northern Plains, Great Lakes and into the Northeast U.S. will bring heavy snow and gusty winds Thursday into Saturday. Read More >

Current conditions at

CASTLE ROCK (TR950)

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

NA

46°F

8°C

Humidity 100%
Wind Speed SSW 3 MPH
Barometer NA
Dewpoint 46°F (8°C)
Visibility NA
Last update 12 Mar 04:09 AM PDT
Extended Forecast for

11 Miles NW Mount St Helens WA

Winter Storm Warning March 12, 04:19am until March 13, 05:00am
Click here for hazard details and duration
Winter Storm Warning
  •  
    Winter Storm Warning March 12, 04:19am until March 13, 05:00am

    NOW until 5:00am Fri

    Winter Storm Warning

  • Overnight

    Low: 33 °F

    Heavy Snow
    and Breezy

  • Thursday

    Thursday: Snow. The snow could be heavy at times.  High near 32. West wind 6 to 11 mph, with gusts as high as 20 mph.  Chance of precipitation is 100%. New snow accumulation of 6 to 10 inches possible.

    High: 32 °F

    Heavy Snow

  • Thursday Night

    Thursday Night: Snow before 2am, then snow, possibly mixed with rain. The snow could be heavy at times.  Low around 31. West southwest wind around 5 mph becoming light and variable  in the evening.  Chance of precipitation is 100%. New snow accumulation of 6 to 10 inches possible.

    Low: 31 °F

    Heavy Snow
    then
    Rain/Snow

  • Friday

    Friday: Snow, possibly mixed with rain. The snow could be heavy at times.  Snow level 4300 feet lowering to 3800 feet in the afternoon . High near 35. Light south southwest wind.  Chance of precipitation is 100%. New snow accumulation of 4 to 8 inches possible.

    High: 35 °F

    Rain/Snow

  • Friday Night

    Friday Night: Snow, possibly mixed with rain, becoming all snow after 11pm.  Low around 25. West northwest wind around 6 mph.  Chance of precipitation is 100%. New snow accumulation of 3 to 5 inches possible.

    Low: 25 °F

    Rain/Snow
    then Snow

  • Saturday

    Saturday: Snow likely.  Mostly cloudy, with a high near 33. Chance of precipitation is 70%. New snow accumulation of less than one inch possible.

    High: 33 °F

    Snow Likely

  • Saturday Night

    Saturday Night: A 30 percent chance of snow, mainly before 11pm.  Mostly cloudy, with a low around 23. New snow accumulation of less than a half inch possible.

    Low: 23 °F

    Chance Snow

  • Sunday

    Sunday: Snow before 2pm, then rain and snow.  Mostly cloudy, with a high near 37.

    High: 37 °F

    Snow then
    Rain/Snow

Detailed Forecast

Overnight
Snow. The snow could be heavy at times. Steady temperature around 33. Breezy, with a west wind around 17 mph, with gusts as high as 28 mph. Chance of precipitation is 90%. Total nighttime snow accumulation of 1 to 3 inches possible.
Thursday
Snow. The snow could be heavy at times. High near 32. West wind 6 to 11 mph, with gusts as high as 20 mph. Chance of precipitation is 100%. New snow accumulation of 6 to 10 inches possible.
Thursday Night
Snow before 2am, then snow, possibly mixed with rain. The snow could be heavy at times. Low around 31. West southwest wind around 5 mph becoming light and variable in the evening. Chance of precipitation is 100%. New snow accumulation of 6 to 10 inches possible.
Friday
Snow, possibly mixed with rain. The snow could be heavy at times. Snow level 4300 feet lowering to 3800 feet in the afternoon . High near 35. Light south southwest wind. Chance of precipitation is 100%. New snow accumulation of 4 to 8 inches possible.
Friday Night
Snow, possibly mixed with rain, becoming all snow after 11pm. Low around 25. West northwest wind around 6 mph. Chance of precipitation is 100%. New snow accumulation of 3 to 5 inches possible.
Saturday
Snow likely. Mostly cloudy, with a high near 33. Chance of precipitation is 70%. New snow accumulation of less than one inch possible.
Saturday Night
A 30 percent chance of snow, mainly before 11pm. Mostly cloudy, with a low around 23. New snow accumulation of less than a half inch possible.
Sunday
Snow before 2pm, then rain and snow. Mostly cloudy, with a high near 37.
Sunday Night
Rain and snow, becoming all rain after 8pm. Cloudy, with a low around 35.
Monday
Rain likely. Mostly cloudy, with a high near 45.
Monday Night
A chance of rain. Mostly cloudy, with a low around 37.
Tuesday
A chance of rain. Partly sunny, with a high near 54.
Tuesday Night
A chance of rain. Mostly cloudy, with a low around 41.
Wednesday
Rain. Mostly cloudy, with a high near 50.
Basemap Options
Click map to change the forecast location
Loading map...

ABOUT THIS FORECAST

 
Point Forecast:
11 Miles NW Mount St Helens WA
 46.31°N 122.34°W (Elev. 3691 ft)
3:42 am PDT Mar 12, 2026
4am PDT Mar 12, 2026-6pm PDT Mar 18, 2026
 
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