National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Heavy Snow in the Sierra Nevada; Heavy Rainfall in Texas Sunday

Heavy snow is expected in the Sierra Nevada mountain ranges into Saturday causing hazardous travel conditions. Winter Storm Warnings have been issued. Thunderstorms and moderate to heavy rainfall are expected across portions of eastern Texas into Louisiana on Sunday. Read More >

Current conditions at

CASTLE ROCK (TR950)

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

NA

52°F

11°C

Humidity 90%
Wind Speed S 0 MPH
Barometer NA
Dewpoint 49°F (9°C)
Visibility NA
Last update 14 Nov 07:09 PM PST
Extended Forecast for

11 Miles NW Mount St Helens WA

  • Tonight

    Tonight: Rain, mainly after 9pm. Steady temperature around 44. Breezy, with a south southeast wind 18 to 20 mph, with gusts as high as 31 mph. Chance of precipitation is 100%. New precipitation amounts between a quarter and half of an inch possible.

    Low: 44 °F

    Rain and
    Breezy

  • Sunday

    Sunday: Rain and snow before 2pm, then rain likely between 2pm and 3pm, then rain, possibly mixed with snow after 3pm. Snow level 5000 feet lowering to 4400 feet in the afternoon . Steady temperature around 41. Breezy, with a south wind 11 to 16 mph decreasing to 5 to 10 mph in the afternoon. Winds could gust as high as 25 mph. Chance of precipitation is 90%. Little or no snow accumulation expected.

    High: 41 °F

    Rain/Snow
    Likely and
    Breezy then
    Rain/Snow

  • Sunday Night

    Sunday Night: Rain and snow showers likely, becoming all rain after 1am. Snow level 4200 feet. Mostly cloudy, with a low around 36. South southeast wind 7 to 9 mph. Chance of precipitation is 60%. Little or no snow accumulation expected.

    Low: 36 °F

    Rain/Snow
    Likely then
    Showers
    Likely

  • Monday

    Monday: Showers, mainly before 4pm. Patchy fog after 4pm. Snow level 4200 feet. High near 38. South southeast wind 5 to 8 mph becoming calm in the afternoon. Chance of precipitation is 80%. New precipitation amounts of less than a tenth of an inch possible.

    High: 38 °F

    Showers and
    Patchy Fog

  • Monday Night

    Monday Night: A chance of rain and snow showers before 10pm. Patchy fog before 7pm. Otherwise, mostly cloudy, with a low around 33. Calm wind becoming south around 5 mph after midnight. Chance of precipitation is 30%. Little or no snow accumulation expected.

    Low: 33 °F

    Chance
    Rain/Snow and
    Patchy Fog
    then Mostly
    Cloudy

  • Tuesday

    Tuesday: Partly sunny, with a high near 40.

    High: 40 °F

    Partly Sunny

  • Tuesday Night

    Tuesday Night: Snow likely, mainly after 4am. Increasing clouds, with a low around 34. Breezy. Chance of precipitation is 60%. New snow accumulation of less than a half inch possible.

    Low: 34 °F

    Snow Likely
    and Breezy

  • Wednesday

    Wednesday: Snow likely, mainly before 10am. Mostly cloudy, with a high near 37. Breezy.

    High: 37 °F

    Snow Likely
    and Breezy

  • Wednesday Night

    Wednesday Night: A chance of snow, mainly before 10pm. Mostly cloudy, with a low around 31.

    Low: 31 °F

    Chance Snow

Detailed Forecast

Tonight
Rain, mainly after 9pm. Steady temperature around 44. Breezy, with a south southeast wind 18 to 20 mph, with gusts as high as 31 mph. Chance of precipitation is 100%. New precipitation amounts between a quarter and half of an inch possible.
Sunday
Rain and snow before 2pm, then rain likely between 2pm and 3pm, then rain, possibly mixed with snow after 3pm. Snow level 5000 feet lowering to 4400 feet in the afternoon . Steady temperature around 41. Breezy, with a south wind 11 to 16 mph decreasing to 5 to 10 mph in the afternoon. Winds could gust as high as 25 mph. Chance of precipitation is 90%. Little or no snow accumulation expected.
Sunday Night
Rain and snow showers likely, becoming all rain after 1am. Snow level 4200 feet. Mostly cloudy, with a low around 36. South southeast wind 7 to 9 mph. Chance of precipitation is 60%. Little or no snow accumulation expected.
Monday
Showers, mainly before 4pm. Patchy fog after 4pm. Snow level 4200 feet. High near 38. South southeast wind 5 to 8 mph becoming calm in the afternoon. Chance of precipitation is 80%. New precipitation amounts of less than a tenth of an inch possible.
Monday Night
A chance of rain and snow showers before 10pm. Patchy fog before 7pm. Otherwise, mostly cloudy, with a low around 33. Calm wind becoming south around 5 mph after midnight. Chance of precipitation is 30%. Little or no snow accumulation expected.
Tuesday
Partly sunny, with a high near 40.
Tuesday Night
Snow likely, mainly after 4am. Increasing clouds, with a low around 34. Breezy. Chance of precipitation is 60%. New snow accumulation of less than a half inch possible.
Wednesday
Snow likely, mainly before 10am. Mostly cloudy, with a high near 37. Breezy.
Wednesday Night
A chance of snow, mainly before 10pm. Mostly cloudy, with a low around 31.
Thursday
Partly sunny, with a high near 40.
Thursday Night
Partly cloudy, with a low around 30.
Friday
Mostly sunny, with a high near 39.
Friday Night
A slight chance of snow. Mostly cloudy, with a low around 31.
Saturday
A chance of rain and snow. Partly sunny, with a high near 39.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
11 Miles NW Mount St Helens WA
 46.31°N 122.34°W (Elev. 3691 ft)
Last Update:
7:41 pm PST Nov 14, 2026
Forecast Valid:
8pm PST Nov 14, 2026-6pm PST Nov 21, 2026
 
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