Major Winter Storm Ongoing in the Upper Midwest and Great Lakes; Severe Weather Along the East Coast

A major winter storm will continue to bring blizzard conditions, heavy snowfall, icing, and strong winds through today across the Upper Midwest and Upper Great Lakes. Widespread severe storms are expected across the entire eastern U.S. with the highest threat over the interior Mid-Atlantic, where there is a risk for damaging wind gusts and a few tornadoes. Heat continues to build in the West. Read More >

Current conditions at

CASTLE ROCK (TR950)

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

NA

51°F

11°C

Humidity 79%
Wind Speed S 2 MPH
Barometer NA
Dewpoint 45°F (7°C)
Visibility NA
Last update 16 Mar 11:09 AM PDT
Extended Forecast for

11 Miles NW Mount St Helens WA

  • Today

    Today: A 20 percent chance of rain before noon.  Mostly cloudy, then gradually becoming sunny, with a high near 50. South southwest wind 7 to 9 mph.

    High: 50 °F

    Slight Chance
    Rain

  • Tonight

    Tonight: Rain likely, mainly after 3am.  Snow level 5500 feet rising to 9300 feet after midnight. Increasing clouds, with a low around 41. South southwest wind around 8 mph.  Chance of precipitation is 70%. New precipitation amounts between a tenth and quarter of an inch possible.

    Low: 41 °F

    Slight Chance
    Rain then
    Rain Likely

  • Tuesday

    Tuesday: Rain.  High near 46. South southeast wind 6 to 8 mph.  Chance of precipitation is 90%. New precipitation amounts between a quarter and half of an inch possible.

    High: 46 °F

    Rain

  • Tuesday Night

    Tuesday Night: Rain.  Low around 42. South wind 6 to 8 mph.  Chance of precipitation is 90%. New precipitation amounts between a quarter and half of an inch possible.

    Low: 42 °F

    Rain

  • Wednesday

    Wednesday: Rain.  High near 48. South wind around 8 mph.  Chance of precipitation is 90%. New precipitation amounts between a quarter and half of an inch possible.

    High: 48 °F

    Rain

  • Wednesday Night

    Wednesday Night: Rain likely, mainly before 11pm.  Cloudy, with a low around 45. Chance of precipitation is 70%.

    Low: 45 °F

    Rain Likely

  • Thursday

    Thursday: Rain.  High near 49. Chance of precipitation is 80%.

    High: 49 °F

    Rain

  • Thursday Night

    Thursday Night: Rain.  Mostly cloudy, with a low around 46.

    Low: 46 °F

    Rain

  • Friday

    Friday: Rain.  Cloudy, with a high near 48.

    High: 48 °F

    Rain

Detailed Forecast

Today
A 20 percent chance of rain before noon. Mostly cloudy, then gradually becoming sunny, with a high near 50. South southwest wind 7 to 9 mph.
Tonight
Rain likely, mainly after 3am. Snow level 5500 feet rising to 9300 feet after midnight. Increasing clouds, with a low around 41. South southwest wind around 8 mph. Chance of precipitation is 70%. New precipitation amounts between a tenth and quarter of an inch possible.
Tuesday
Rain. High near 46. South southeast wind 6 to 8 mph. Chance of precipitation is 90%. New precipitation amounts between a quarter and half of an inch possible.
Tuesday Night
Rain. Low around 42. South wind 6 to 8 mph. Chance of precipitation is 90%. New precipitation amounts between a quarter and half of an inch possible.
Wednesday
Rain. High near 48. South wind around 8 mph. Chance of precipitation is 90%. New precipitation amounts between a quarter and half of an inch possible.
Wednesday Night
Rain likely, mainly before 11pm. Cloudy, with a low around 45. Chance of precipitation is 70%.
Thursday
Rain. High near 49. Chance of precipitation is 80%.
Thursday Night
Rain. Mostly cloudy, with a low around 46.
Friday
Rain. Cloudy, with a high near 48.
Friday Night
Rain likely before 2am, then rain likely, possibly mixed with snow. Snow level 6800 feet lowering to 4700 feet after midnight . Mostly cloudy, with a low around 34.
Saturday
Rain and snow likely. Snow level 3800 feet. Mostly cloudy, with a high near 43.
Saturday Night
A chance of rain and snow. Mostly cloudy, with a low around 31.
Sunday
A chance of snow. Partly sunny, with a high near 44.
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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)
11:28 am PDT Mar 16, 2026
11am PDT Mar 16, 2026-6pm PDT Mar 22, 2026
 
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Additional Resources

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