Severe Thunderstorm, Flooding, and Winter Weather Threats on Tuesday

Scattered severe thunderstorms are forecast Tuesday from the southern Plains into the southern Great Lakes vicinity. Thunderstorms may also produce heavy to excessive rain that could pose a flooding threat from central Texas into southern Oklahoma and northern Missouri into southern Michigan. A heavy wintry mix is forecast for the Great Lakes into northern Maine. Read More >

Current conditions at

CASTLE ROCK (TR950)

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

NA

36°F

2°C

Humidity 100%
Wind Speed SE 1 MPH
Barometer NA
Dewpoint 36°F (2°C)
Visibility NA
Last update 10 Mar 12:09 AM PDT
Extended Forecast for

12 Miles WNW Mount St Helens WA

  • Overnight

    Overnight: Snow likely, mainly between 1am and 3am.  Mostly cloudy, with a low around 30. Calm wind.  Chance of precipitation is 70%. Total nighttime snow accumulation of 1 to 3 inches possible.

    Low: 30 °F

    Snow Likely

  • Tuesday

    Tuesday: Snow likely before noon, then rain, possibly mixed with snow.  High near 40. Calm wind becoming south around 5 mph. Winds could gust as high as 18 mph.  Chance of precipitation is 100%. New snow accumulation of less than one inch possible.

    High: 40 °F

    Snow Likely
    then
    Rain/Snow

  • Tuesday Night

    Tuesday Night: Rain, possibly mixed with snow.  Snow level 2000 feet rising to 2600 feet after midnight. Low around 36. Calm wind.  Chance of precipitation is 100%. Little or no snow accumulation expected.

    Low: 36 °F

    Rain/Snow

  • Wednesday

    Wednesday: Rain, possibly mixed with snow, becoming all rain after 11am.  Snow level 2500 feet rising to 4400 feet in the afternoon. High near 47. Calm wind becoming south around 5 mph in the afternoon.  Chance of precipitation is 100%. Little or no snow accumulation expected.

    High: 47 °F

    Rain/Snow
    then Rain

  • Wednesday Night

    Wednesday Night: Rain.  Low around 40. South southwest wind around 6 mph, with gusts as high as 22 mph.  Chance of precipitation is 100%. New precipitation amounts between 1 and 2 inches possible.

    Low: 40 °F

    Rain

  • Thursday

    Thursday: Rain.  Snow level 4200 feet lowering to 3000 feet. High near 46. Chance of precipitation is 100%.

    High: 46 °F

    Rain

  • Thursday Night

    Thursday Night: Rain.  Low around 41. Chance of precipitation is 100%.

    Low: 41 °F

    Rain

  • Friday

    Friday: Rain.  Cloudy, with a high near 47.

    High: 47 °F

    Rain

  • Friday Night

    Friday Night: Rain before 11pm, then rain and snow likely.  Snow level 4700 feet lowering to 2200 feet after midnight . Cloudy, with a low around 33.

    Low: 33 °F

    Rain/Snow

Detailed Forecast

Overnight
Snow likely, mainly between 1am and 3am. Mostly cloudy, with a low around 30. Calm wind. Chance of precipitation is 70%. Total nighttime snow accumulation of 1 to 3 inches possible.
Tuesday
Snow likely before noon, then rain, possibly mixed with snow. High near 40. Calm wind becoming south around 5 mph. Winds could gust as high as 18 mph. Chance of precipitation is 100%. New snow accumulation of less than one inch possible.
Tuesday Night
Rain, possibly mixed with snow. Snow level 2000 feet rising to 2600 feet after midnight. Low around 36. Calm wind. Chance of precipitation is 100%. Little or no snow accumulation expected.
Wednesday
Rain, possibly mixed with snow, becoming all rain after 11am. Snow level 2500 feet rising to 4400 feet in the afternoon. High near 47. Calm wind becoming south around 5 mph in the afternoon. Chance of precipitation is 100%. Little or no snow accumulation expected.
Wednesday Night
Rain. Low around 40. South southwest wind around 6 mph, with gusts as high as 22 mph. Chance of precipitation is 100%. New precipitation amounts between 1 and 2 inches possible.
Thursday
Rain. Snow level 4200 feet lowering to 3000 feet. High near 46. Chance of precipitation is 100%.
Thursday Night
Rain. Low around 41. Chance of precipitation is 100%.
Friday
Rain. Cloudy, with a high near 47.
Friday Night
Rain before 11pm, then rain and snow likely. Snow level 4700 feet lowering to 2200 feet after midnight . Cloudy, with a low around 33.
Saturday
Rain and snow likely, becoming all rain after 11am. Snow level rising to 1700 feet in the afternoon. Mostly cloudy, with a high near 45.
Saturday Night
A chance of rain and snow. Snow level 1900 feet lowering to 1200 feet. Mostly cloudy, with a low around 34.
Sunday
Rain and snow likely. Snow level 1300 feet rising to 3600 feet in the afternoon. Mostly cloudy, with a high near 49.
Sunday Night
Rain likely. Mostly cloudy, with a low around 42.
Monday
Rain likely. Mostly cloudy, with a high near 57.
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ABOUT THIS FORECAST

 
Point Forecast:
12 Miles WNW Mount St Helens WA
 46.23°N 122.44°W (Elev. 1240 ft)
11:41 pm PDT Mar 9, 2026
12am PDT Mar 10, 2026-6pm PDT Mar 16, 2026
 
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Additional Resources

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