Heavy Rain and Flooding Concerns in Hawaii; Severe Weather this Weekend in the Plains; Pacific Storm in the West

A storm system near the Hawaiian Islands is expected to bring periods of heavy rainfall, strong winds, and isolated strong to severe thunderstorms through Friday. Several rounds of severe thunderstorms are forecast to impact parts of the Great Plains into the Midwest this weekend into next week. Moderate to heavy rainfall and high elevation snow is expected this weekend over California and Oregon. Read More >

Current conditions at

CASTLE ROCK (TR950)

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

NA

43°F

6°C

Humidity 96%
Wind Speed NNE 0 MPH
Barometer NA
Dewpoint 42°F (6°C)
Visibility NA
Last update 10 Apr 02:09 AM PDT
Extended Forecast for

11 Miles NW Mount St Helens WA

  • Overnight

    Overnight: Partly cloudy, with a low around 48. East southeast wind around 9 mph.

    Low: 48 °F

    Partly Cloudy

  • Friday

    Friday: A 20 percent chance of showers after 1pm.  Mostly cloudy, with a high near 57. Southeast wind 3 to 6 mph.

    High: 57 °F

    Mostly Cloudy
    then Slight
    Chance
    Showers

  • Friday Night

    Friday Night: Showers, mainly after 2am.  Low around 43. West wind around 6 mph becoming calm  in the evening.  Chance of precipitation is 80%. New precipitation amounts between a quarter and half of an inch possible.

    Low: 43 °F

    Chance
    Showers then
    Showers

  • Saturday

    Saturday: Showers.  Snow level 6200 feet lowering to 5600 feet. High near 47. West southwest wind 3 to 5 mph.  Chance of precipitation is 90%. New precipitation amounts between a tenth and quarter of an inch possible.

    High: 47 °F

    Showers

  • Saturday Night

    Saturday Night: A 40 percent chance of showers before 11pm.  Snow level 5800 feet lowering to 5200 feet after midnight . Mostly cloudy, with a low around 40. West northwest wind 3 to 7 mph.

    Low: 40 °F

    Chance
    Showers then
    Mostly Cloudy

  • Sunday

    Sunday: A 50 percent chance of showers, mainly after 11am.  Snow level 5000 feet. Mostly cloudy, with a high near 45.

    High: 45 °F

    Chance
    Showers

  • Sunday Night

    Sunday Night: Rain showers likely before 8pm, then rain likely, possibly mixed with snow showers.  Snow level 5100 feet lowering to 3900 feet after midnight . Mostly cloudy, with a low around 38. Chance of precipitation is 60%. Little or no snow accumulation expected.

    Low: 38 °F

    Rain/Snow
    Likely

  • Monday

    Monday: Snow showers likely before 2pm, then rain and snow showers likely.  Mostly cloudy, with a high near 40.

    High: 40 °F

    Snow Showers
    Likely then
    Rain/Snow
    Likely

  • Monday Night

    Monday Night: Rain and snow likely, becoming all snow after 8pm.  Mostly cloudy, with a low around 35.

    Low: 35 °F

    Rain/Snow
    Likely then
    Chance Snow

Detailed Forecast

Overnight
Partly cloudy, with a low around 48. East southeast wind around 9 mph.
Friday
A 20 percent chance of showers after 1pm. Mostly cloudy, with a high near 57. Southeast wind 3 to 6 mph.
Friday Night
Showers, mainly after 2am. Low around 43. West wind around 6 mph becoming calm in the evening. Chance of precipitation is 80%. New precipitation amounts between a quarter and half of an inch possible.
Saturday
Showers. Snow level 6200 feet lowering to 5600 feet. High near 47. West southwest wind 3 to 5 mph. Chance of precipitation is 90%. New precipitation amounts between a tenth and quarter of an inch possible.
Saturday Night
A 40 percent chance of showers before 11pm. Snow level 5800 feet lowering to 5200 feet after midnight . Mostly cloudy, with a low around 40. West northwest wind 3 to 7 mph.
Sunday
A 50 percent chance of showers, mainly after 11am. Snow level 5000 feet. Mostly cloudy, with a high near 45.
Sunday Night
Rain showers likely before 8pm, then rain likely, possibly mixed with snow showers. Snow level 5100 feet lowering to 3900 feet after midnight . Mostly cloudy, with a low around 38. Chance of precipitation is 60%. Little or no snow accumulation expected.
Monday
Snow showers likely before 2pm, then rain and snow showers likely. Mostly cloudy, with a high near 40.
Monday Night
Rain and snow likely, becoming all snow after 8pm. Mostly cloudy, with a low around 35.
Tuesday
Snow. Mostly cloudy, with a high near 37. Breezy.
Tuesday Night
Snow. Cloudy, with a low around 33. Breezy.
Wednesday
Snow. Mostly cloudy, with a high near 38.
Wednesday Night
A chance of snow. Partly cloudy, with a low around 29.
Thursday
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)
2:41 am PDT Apr 10, 2026
2am PDT Apr 10, 2026-6pm PDT Apr 16, 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