National Weather Service

News Headlines

Soliciting feedback on the Experimental Probabilistic Quantitative Precipitation Forecast (PQPF) Webpages through November 21, 2025

Hazardous Weather Conditions

Winter Weather Advisory until March 22, 05:00 AM PDT

Current conditions at

Mt. St. Helens - Coldwater (MSH33)

Lat: 46.30333°NLon: 122.26503°WElev: 3260.0ft.

N/A

Humidity	97%
Wind Speed	S 6 MPH
Barometer	NA
Dewpoint	N/A
Visibility	NA
Last update	22 Feb 02:00 PM PST

More Information:

Local Forecast Office More Local Wx 3 Day History Hourly Weather Forecast

Extended Forecast for

2 Miles S Mount St Helens WA

Winter Weather Advisory March 21, 08:08am until March 22, 05:00am

Click here for hazard details and duration

Winter Weather Advisory

Winter Weather Advisory March 21, 08:08am until March 22, 05:00am
NOW until 5:00am Sat
Winter Weather Advisory
Today
High: 38 °F
Rain/Snow and
Breezy
Tonight
Low: 30 °F
Heavy Snow
and Breezy
Saturday
High: 37 °F
Snow Showers
Likely
Saturday Night
Low: 34 °F
Rain/Snow
Sunday
High: 44 °F
Rain/Snow
then Showers
Sunday Night
Low: 41 °F
Showers
Monday
High: 49 °F
Showers
Monday Night
Low: 41 °F
Chance
Showers then
Mostly Cloudy

Detailed Forecast

Today

Snow, possibly mixed with rain. The snow could be heavy at times. Snow level 4500 feet lowering to 3800 feet in the afternoon . High near 38. Breezy, with a west southwest wind 10 to 20 mph, with gusts as high as 31 mph. Chance of precipitation is 100%. Total daytime snow accumulation of less than one inch possible.

Tonight

Snow, mainly after 5am. The snow could be heavy at times. Low around 30. Breezy, with a west wind 13 to 18 mph, with gusts as high as 30 mph. Chance of precipitation is 100%. New snow accumulation of 2 to 4 inches possible.

Saturday

A chance of snow before 7am, then snow showers likely, mainly after 11am. Mostly cloudy, with a high near 37. West wind 6 to 11 mph becoming light in the afternoon. Chance of precipitation is 70%. New snow accumulation of less than a half inch possible.

Saturday Night

Rain, possibly mixed with snow showers. Snow level rising to 4600 feet after midnight. Low around 34. Light and variable wind. Chance of precipitation is 80%. New snow accumulation of less than a half inch possible.

Sunday

Rain, possibly mixed with snow showers, becoming all rain after 8am. Snow level 5200 feet rising to 7000 feet in the afternoon. High near 44. South southwest wind 5 to 7 mph. Chance of precipitation is 100%. Little or no snow accumulation expected.

Sunday Night

Showers. Low around 41. Chance of precipitation is 90%.

Monday

Showers. High near 49. Chance of precipitation is 80%.

Monday Night

A chance of showers before 11pm. Mostly cloudy, with a low around 41.

Tuesday

Mostly sunny, with a high near 58.

Tuesday Night

A chance of showers, mainly after 11pm. Mostly cloudy, with a low around 44.

Wednesday

Showers. Mostly cloudy, with a high near 54.