Notice of NWS' New Version of Forecast
A new version of Forecast is coming soon!
Click here to visit the new site for details.

Atmospheric River in the Pacific Northwest and Northwest California Early This Week

An atmospheric river event will bring heavy rains and rising snow levels to the Pacific Northwest and northwest California early this week. Snow levels will rise above 8,000 feet, and 4 to 7 inches of rain is forecast for the southwest facing slopes of the mountains. Minor river and localized flooding will be possible. In the east, winds decrease by Monday, and the week will be relatively dry. Read More >

Current conditions at

Mt St Helens - Coldwater (MSH33)

Lat: 46.30333°NLon: 122.26503°WElev: 3260ft.

NA

35°F

2°C

Humidity 96%
Wind Speed SSE 11 G 20 MPH
Barometer NA
Dewpoint 34°F (1°C)
Visibility NA
Wind Chill27°F (-3°C)
Last update 19 Nov 7:00 pm PST
Extended Forecast for

Mount St Helens WA

Winter Storm Warning until November 20, 06:00am
Click here for hazard details and duration
Winter Storm Warning
  •  
    Winter Storm Warning until November 20, 06:00am

    NOW until
    6:00am Mon

    Winter Storm Warning

  • Tonight

    Tonight: Snow. The snow could be heavy at times.  Temperature rising to around 38 by 5am. Breezy, with a southwest wind 22 to 28 mph, with gusts as high as 44 mph.  Chance of precipitation is 100%. Total nighttime snow accumulation of 11 to 17 inches possible.

    Heavy Snow
    and Breezy

    Low: 32 °F

  • Monday

    Monday: Snow before 4pm, then a chance of rain and snow.  Temperature falling to around 34 by 4pm. Southwest wind around 6 mph.  Chance of precipitation is 80%. New snow accumulation of 1 to 3 inches possible.

    Snow then
    Chance
    Rain/Snow

    High: 39 °F

  • Monday
    Night

    Monday Night: A chance of rain and snow before 10pm, then rain.  Temperature rising to around 42 by 5am. South southwest wind 8 to 11 mph, with gusts as high as 18 mph.  Chance of precipitation is 80%. Little or no snow accumulation expected.

    Rain/Snow
    then Rain

    Low: 34 °F

  • Tuesday

    Tuesday: Rain. The rain could be heavy at times.  High near 45. Breezy, with a south wind 13 to 18 mph increasing to 20 to 25 mph in the morning. Winds could gust as high as 40 mph.  Chance of precipitation is 100%. New precipitation amounts between 1 and 2 inches possible.

    Heavy Rain
    and Breezy

    High: 45 °F

  • Tuesday
    Night

    Tuesday Night: Rain.  Low around 41. Breezy, with a south southwest wind 23 to 26 mph, with gusts as high as 43 mph.  Chance of precipitation is 90%. New precipitation amounts between a half and three quarters of an inch possible.

    Rain and
    Breezy

    Low: 41 °F

  • Wednesday

    Wednesday: Rain.  High near 45. Breezy.  Chance of precipitation is 100%.

    Rain and
    Breezy

    High: 45 °F

  • Wednesday
    Night

    Wednesday Night: Rain likely.  Cloudy, with a low around 39. Breezy.  Chance of precipitation is 60%.

    Rain Likely
    and Breezy

    Low: 39 °F

  • Thanksgiving
    Day

    Thanksgiving Day: Rain.  Cloudy, with a high near 42. Windy.

    Rain and
    Windy

    High: 42 °F

Detailed Forecast

Tonight
Snow. The snow could be heavy at times. Temperature rising to around 38 by 5am. Breezy, with a southwest wind 22 to 28 mph, with gusts as high as 44 mph. Chance of precipitation is 100%. Total nighttime snow accumulation of 11 to 17 inches possible.
Monday
Snow before 4pm, then a chance of rain and snow. Temperature falling to around 34 by 4pm. Southwest wind around 6 mph. Chance of precipitation is 80%. New snow accumulation of 1 to 3 inches possible.
Monday Night
A chance of rain and snow before 10pm, then rain. Temperature rising to around 42 by 5am. South southwest wind 8 to 11 mph, with gusts as high as 18 mph. Chance of precipitation is 80%. Little or no snow accumulation expected.
Tuesday
Rain. The rain could be heavy at times. High near 45. Breezy, with a south wind 13 to 18 mph increasing to 20 to 25 mph in the morning. Winds could gust as high as 40 mph. Chance of precipitation is 100%. New precipitation amounts between 1 and 2 inches possible.
Tuesday Night
Rain. Low around 41. Breezy, with a south southwest wind 23 to 26 mph, with gusts as high as 43 mph. Chance of precipitation is 90%. New precipitation amounts between a half and three quarters of an inch possible.
Wednesday
Rain. High near 45. Breezy. Chance of precipitation is 100%.
Wednesday Night
Rain likely. Cloudy, with a low around 39. Breezy. Chance of precipitation is 60%.
Thanksgiving Day
Rain. Cloudy, with a high near 42. Windy.
Thursday Night
Snow. Mostly cloudy, with a low around 30. Breezy.
Friday
Snow showers likely. Mostly cloudy, with a high near 35.
Friday Night
A chance of snow showers. Mostly cloudy, with a low around 30.
Saturday
A chance of snow showers. Mostly cloudy, with a high near 41.
Saturday Night
Snow likely. Mostly cloudy, with a low around 31.
Sunday
Snow likely. Mostly cloudy, with a high near 38.
Click Map For Forecast
Point Forecast:
Mount St Helens WA
 46.18°N 122.18°W (Elev. 6204 ft)
2:07 pm PST Nov 19, 2017
8pm PST Nov 19, 2017-6pm PST Nov 26, 2017
 
Get as KML Get as XML

Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database