Critical Fire Weather in the High Plains; Heavy Snow in the Western Mountains and Northern Plains

Gusty winds and low relative humidity will bring critical fire weather to the central and southern High Plains Wednesday. Two Pacific storms will continue impacting the mountains of the western U.S. into Thursday with gusty winds and heavy snow. Heavy snow and gusty winds will continue to impact the northern Plains into the central Great Lakes Wednesday. Read More >

Current conditions at

CASTLE ROCK (TR950)

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

NA

31°F

-1°C

Humidity 100%
Wind Speed ESE 0 MPH
Barometer NA
Dewpoint 31°F (-1°C)
Visibility NA
Last update 17 Feb 11:09 PM PST
Extended Forecast for

11 Miles NW Mount St Helens WA

Winter Weather Advisory February 17, 11:25pm until February 20, 04:00am
Click here for hazard details and duration
Winter Weather Advisory
  •  
    Winter Weather Advisory February 17, 11:25pm until February 20, 04:00am

    NOW until 4:00am Fri

    Winter Weather Advisory

  • Tonight

    Low: 24 °F

    Chance Snow
    Showers

  • Wednesday

    Wednesday: Snow showers, mainly after 3pm.  High near 30. South southwest wind 6 to 9 mph.  Chance of precipitation is 80%. New snow accumulation of 1 to 3 inches possible.

    High: 30 °F

    Chance Snow
    Showers then
    Snow Showers

  • Wednesday Night

    Wednesday Night: Snow showers likely, mainly between midnight and 1am.  Mostly cloudy, with a low around 26. East southeast wind around 7 mph.  Chance of precipitation is 60%. New snow accumulation of 1 to 3 inches possible.

    Low: 26 °F

    Snow Showers
    Likely

  • Thursday

    Thursday: Snow showers likely, mainly between 10am and 4pm.  Mostly cloudy, with a high near 31. East northeast wind around 6 mph becoming west northwest in the afternoon.  Chance of precipitation is 70%. New snow accumulation of less than one inch possible.

    High: 31 °F

    Snow Showers
    Likely

  • Thursday Night

    Thursday Night: A 40 percent chance of snow showers, mainly after 4am.  Mostly cloudy, with a low around 20. Light and variable wind.  New snow accumulation of less than a half inch possible.

    Low: 20 °F

    Chance Snow
    Showers

  • Friday

    Friday: Snow showers likely, mainly after 10am.  Mostly cloudy, with a high near 31. Chance of precipitation is 70%. New snow accumulation of less than a half inch possible.

    High: 31 °F

    Snow Showers
    Likely

  • Friday Night

    Friday Night: A chance of snow showers before 4am, then a chance of snow after 4am.  Mostly cloudy, with a low around 27. Chance of precipitation is 50%. New snow accumulation of less than a half inch possible.

    Low: 27 °F

    Chance Snow
    Showers

  • Saturday

    Saturday: Snow likely, mainly after 10am.  Mostly cloudy, with a high near 37. Windy.

    High: 37 °F

    Snow Likely
    and Windy

Detailed Forecast

Tonight
A 30 percent chance of snow showers, mainly before 1am. Mostly cloudy, with a low around 24. Calm wind. Total nighttime snow accumulation of less than a half inch possible.
Wednesday
Snow showers, mainly after 3pm. High near 30. South southwest wind 6 to 9 mph. Chance of precipitation is 80%. New snow accumulation of 1 to 3 inches possible.
Wednesday Night
Snow showers likely, mainly between midnight and 1am. Mostly cloudy, with a low around 26. East southeast wind around 7 mph. Chance of precipitation is 60%. New snow accumulation of 1 to 3 inches possible.
Thursday
Snow showers likely, mainly between 10am and 4pm. Mostly cloudy, with a high near 31. East northeast wind around 6 mph becoming west northwest in the afternoon. Chance of precipitation is 70%. New snow accumulation of less than one inch possible.
Thursday Night
A 40 percent chance of snow showers, mainly after 4am. Mostly cloudy, with a low around 20. Light and variable wind. New snow accumulation of less than a half inch possible.
Friday
Snow showers likely, mainly after 10am. Mostly cloudy, with a high near 31. Chance of precipitation is 70%. New snow accumulation of less than a half inch possible.
Friday Night
A chance of snow showers before 4am, then a chance of snow after 4am. Mostly cloudy, with a low around 27. Chance of precipitation is 50%. New snow accumulation of less than a half inch possible.
Saturday
Snow likely, mainly after 10am. Mostly cloudy, with a high near 37. Windy.
Saturday Night
Snow likely. Mostly cloudy, with a low around 34. Windy.
Sunday
Snow. Cloudy, with a high near 41. Windy.
Sunday Night
Snow. Cloudy, with a low around 34. Breezy.
Monday
Snow. Cloudy, with a high near 38.
Monday Night
Snow. Mostly cloudy, with a low around 33.
Tuesday
Snow. Cloudy, with a high near 38.
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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)
10:41 pm PST Feb 17, 2026
11pm PST Feb 17, 2026-6pm PST Feb 24, 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