Prolonged Atmospheric River Will Impact the Northwest Early this Week

A weather system in the Pacific Northwest will produce rain throughout the day, before a potent atmospheric river produces a prolonged round of heavy rainfall, widespread urban and river flooding, and high elevation snow to the region Monday through Wednesday. Showers and thunderstorms may produce isolated damaging winds, a brief tornado, and locally heavy rainfall across parts of Florida today. Read More >

Current conditions at

BUCK CREEK (BKRW1)

Lat: 46.05667°NLon: 121.53861°WElev: 2708.0ft.

NA

48°F

9°C

Humidity 82%
Wind Speed WNW 3 MPH
Barometer NA
Dewpoint 43°F (6°C)
Visibility NA
Last update 07 Dec 02:25 PM PST
Extended Forecast for

16 Miles E Mount St Helens WA

Flood Watch December 8, 04:00am until December 12, 04:00am
Click here for hazard details and duration
Flood Watch
  • This Afternoon

    This Afternoon: Showers, mainly between 4pm and 5pm.  High near 47. West southwest wind around 8 mph, with gusts as high as 18 mph.  Chance of precipitation is 80%. New precipitation amounts of less than a tenth of an inch possible.

    High: 47 °F

    Showers

  • Tonight

    Tonight: Showers likely, mainly before 4am.  Mostly cloudy, with a low around 42. West southwest wind 3 to 7 mph. Winds could gust as high as 18 mph.  Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch possible.

    Low: 42 °F

    Showers
    Likely

  • Monday

    Monday: Showers, mainly before 10am, then rain after 10am. The rain could be heavy at times.  High near 49. Southwest wind 7 to 14 mph, with gusts as high as 28 mph.  Chance of precipitation is 100%. New precipitation amounts between 1 and 2 inches possible.

    High: 49 °F

    Heavy Rain

  • Monday Night

    Monday Night: Rain. The rain could be heavy at times.  Low around 39. West southwest wind 10 to 14 mph, with gusts as high as 31 mph.  Chance of precipitation is 100%. New precipitation amounts between 2 and 3 inches possible.

    Low: 39 °F

    Heavy Rain

  • Tuesday

    Tuesday: Rain.  High near 48. Light west southwest wind.  Chance of precipitation is 100%. New precipitation amounts between 1 and 2 inches possible.

    High: 48 °F

    Rain

  • Tuesday Night

    Tuesday Night: Rain. The rain could be heavy at times.  Low around 43. Chance of precipitation is 100%.

    Low: 43 °F

    Heavy Rain

  • Wednesday

    Wednesday: Rain. The rain could be heavy at times.  High near 50. Chance of precipitation is 100%.

    High: 50 °F

    Heavy Rain

  • Wednesday Night

    Wednesday Night: Rain.  Cloudy, with a low around 46.

    Low: 46 °F

    Rain

  • Thursday

    Thursday: Rain.  Mostly cloudy, with a high near 50.

    High: 50 °F

    Rain

Detailed Forecast

This Afternoon
Showers, mainly between 4pm and 5pm. High near 47. West southwest wind around 8 mph, with gusts as high as 18 mph. Chance of precipitation is 80%. New precipitation amounts of less than a tenth of an inch possible.
Tonight
Showers likely, mainly before 4am. Mostly cloudy, with a low around 42. West southwest wind 3 to 7 mph. Winds could gust as high as 18 mph. Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch possible.
Monday
Showers, mainly before 10am, then rain after 10am. The rain could be heavy at times. High near 49. Southwest wind 7 to 14 mph, with gusts as high as 28 mph. Chance of precipitation is 100%. New precipitation amounts between 1 and 2 inches possible.
Monday Night
Rain. The rain could be heavy at times. Low around 39. West southwest wind 10 to 14 mph, with gusts as high as 31 mph. Chance of precipitation is 100%. New precipitation amounts between 2 and 3 inches possible.
Tuesday
Rain. High near 48. Light west southwest wind. Chance of precipitation is 100%. New precipitation amounts between 1 and 2 inches possible.
Tuesday Night
Rain. The rain could be heavy at times. Low around 43. Chance of precipitation is 100%.
Wednesday
Rain. The rain could be heavy at times. High near 50. Chance of precipitation is 100%.
Wednesday Night
Rain. Cloudy, with a low around 46.
Thursday
Rain. Mostly cloudy, with a high near 50.
Thursday Night
Rain likely, mainly before 10pm. Mostly cloudy, with a low around 46.
Friday
A chance of rain. Partly sunny, with a high near 54.
Friday Night
A chance of rain. Mostly cloudy, with a low around 41.
Saturday
A chance of rain. Partly sunny, with a high near 52.
Basemap Options
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ABOUT THIS FORECAST

 
Point Forecast:
16 Miles E Mount St Helens WA
 46.19°N 121.84°W (Elev. 2149 ft)
3:00 pm PST Dec 7, 2025
3pm PST Dec 7, 2025-6pm PST Dec 13, 2025
 
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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