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

Unsettled Across the West; Increasingly Rainy with a Few Storms in the South

A frontal system will bring heavy precipitation, including mountain snowfall to much of the Pacific Northwest, northern California, and portions of the Rockies through Tuesday. Elsewhere, wet weather will return to much of the South with locally heavy rainfall; a few strong to severe thunderstorms will also be possible in this region by Tuesday. Read More >

Current conditions at

Mt St Helens - Coldwater (MSH33)

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

NA

39°F

4°C

Humidity 99%
Wind Speed NW 5 G 11 MPH
Barometer NA
Dewpoint 39°F (4°C)
Visibility NA
Wind Chill35°F (2°C)
Last update 18 Dec 2:00 pm PST
Extended Forecast for

Mount St Helens WA

Winter Storm Warning December 19, 12:00am until December 20, 12:00am
Click here for hazard details and duration
Winter Storm Warning
  • This
    Afternoon

    This Afternoon: Snow.  High near 38. Southwest wind around 7 mph.  Chance of precipitation is 80%. Total daytime snow accumulation of 2 to 4 inches possible.

    Snow

    High: 38 °F

  • Tonight

    Tonight: Snow.  Low around 31. South southwest wind 13 to 15 mph, with gusts as high as 25 mph.  Chance of precipitation is 100%. New snow accumulation of 8 to 12 inches possible.

    Snow

    Low: 31 °F

  • Tuesday

    Tuesday: Snow.  Temperature rising to near 32 by 11am, then falling to around 24 during the remainder of the day. Windy, with a south wind 21 to 30 mph, with gusts as high as 45 mph.  Chance of precipitation is 100%. New snow accumulation of 14 to 20 inches possible.

    Snow and
    Windy

    High: 32 °F

  • Tuesday
    Night

    Tuesday Night: Snow before 7pm, then snow showers, mainly after 7pm.  Low around 21. Breezy, with a west southwest wind 15 to 22 mph, with gusts as high as 34 mph.  Chance of precipitation is 100%. New snow accumulation of 7 to 11 inches possible.

    Snow and
    Breezy

    Low: 21 °F

  • Wednesday

    Wednesday: Snow showers likely, mainly before 10am.  Mostly cloudy, with a high near 26. West southwest wind 7 to 10 mph becoming northwest in the morning.  Chance of precipitation is 60%. New snow accumulation of 1 to 2 inches possible.

    Snow Showers
    Likely

    High: 26 °F

  • Wednesday
    Night

    Wednesday Night: Partly cloudy, with a low around 20.

    Partly Cloudy

    Low: 20 °F

  • Thursday

    Thursday: Mostly sunny, with a high near 30.

    Mostly Sunny

    High: 30 °F

  • Thursday
    Night

    Thursday Night: A chance of snow showers.  Mostly cloudy, with a low around 23.

    Chance Snow
    Showers

    Low: 23 °F

  • Friday

    Friday: A chance of snow showers.  Mostly cloudy, with a high near 25.

    Chance Snow
    Showers

    High: 25 °F

Detailed Forecast

This Afternoon
Snow. High near 38. Southwest wind around 7 mph. Chance of precipitation is 80%. Total daytime snow accumulation of 2 to 4 inches possible.
Tonight
Snow. Low around 31. South southwest wind 13 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 100%. New snow accumulation of 8 to 12 inches possible.
Tuesday
Snow. Temperature rising to near 32 by 11am, then falling to around 24 during the remainder of the day. Windy, with a south wind 21 to 30 mph, with gusts as high as 45 mph. Chance of precipitation is 100%. New snow accumulation of 14 to 20 inches possible.
Tuesday Night
Snow before 7pm, then snow showers, mainly after 7pm. Low around 21. Breezy, with a west southwest wind 15 to 22 mph, with gusts as high as 34 mph. Chance of precipitation is 100%. New snow accumulation of 7 to 11 inches possible.
Wednesday
Snow showers likely, mainly before 10am. Mostly cloudy, with a high near 26. West southwest wind 7 to 10 mph becoming northwest in the morning. Chance of precipitation is 60%. New snow accumulation of 1 to 2 inches possible.
Wednesday Night
Partly cloudy, with a low around 20.
Thursday
Mostly sunny, with a high near 30.
Thursday Night
A chance of snow showers. Mostly cloudy, with a low around 23.
Friday
A chance of snow showers. Mostly cloudy, with a high near 25.
Friday Night
Mostly cloudy, with a low around 9.
Saturday
Sunny, with a high near 17.
Saturday Night
Mostly clear, with a low around 16.
Sunday
Sunny, with a high near 19.
Click Map For Forecast
Point Forecast:
Mount St Helens WA
 46.2°N 122.18°W (Elev. 5997 ft)
9:08 am PST Dec 18, 2017
2pm PST Dec 18, 2017-6pm PST Dec 24, 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