National Weather Service

News Headlines

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

Current conditions at

Mt. St. Helens - Coldwater (MSH33)

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

57°F

14°C

Humidity	88%
Wind Speed	ENE 0 MPH
Barometer	NA
Dewpoint	54°F (12°C)
Visibility	NA
Last update	19 Sep 09:00 PM PDT

More Information:

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

Extended Forecast for

4 Miles SSE Mount St Helens WA

This Afternoon
High: 66 °F
Sunny
Tonight
Low: 49 °F
Partly Cloudy
then Rain
Sunday
High: 53 °F
Rain then
Chance Rain
Sunday Night
Low: 43 °F
Mostly Clear
Monday
High: 64 °F
Sunny
Monday Night
Low: 52 °F
Clear
Tuesday
High: 74 °F
Sunny
Tuesday Night
Low: 55 °F
Mostly Clear
Wednesday
High: 69 °F
Sunny

Detailed Forecast

This Afternoon

Sunny, with a high near 66. West southwest wind around 6 mph.

Tonight

Rain, mainly after 4am. Low around 49. Calm wind becoming west southwest around 5 mph after midnight. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.

Sunday

Rain, mainly before noon. High near 53. West southwest wind around 7 mph. Chance of precipitation is 90%. New precipitation amounts between a half and three quarters of an inch possible.

Sunday Night

Mostly clear, with a low around 43. West northwest wind around 6 mph becoming calm in the evening.

Monday

Sunny, with a high near 64. Light and variable wind.

Monday Night

Clear, with a low around 52.

Tuesday

Sunny, with a high near 74.

Tuesday Night

Mostly clear, with a low around 55.

Wednesday

Sunny, with a high near 69.