National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Heat the Southwest; Fire Weather in the Central U.S.; Kona Low Impacting Hawaii

A rare March heat wave is ongoing with much above-normal temperatures over the Southwest U.S. through this weekend. Periods of critical fire weather will persist from the central Rockies to the central and southern Plains through the weekend as gusty winds and low relative humidity continue. A Kona low will continue to bring several rounds of moderate to heavy rainfall to Hawaii through Sunday. Read More >

Current conditions at

CANYON CREEK (CYFW1)

Lat: 45.92944°NLon: 122.20278°WElev: 2592.0ft.

NA

47°F

8°C

Humidity 100%
Wind Speed SE 1 MPH
Barometer NA
Dewpoint 47°F (8°C)
Visibility NA
Last update 20 Mar 03:52 PM PDT
Extended Forecast for

Mount St Helens WA

  • This Afternoon

    This Afternoon: Rain before 5pm, then rain, possibly mixed with snow. Snow level 7800 feet. High near 38. West wind around 14 mph, with gusts as high as 20 mph. Chance of precipitation is 100%. Total daytime snow accumulation of less than a half inch possible.

    High: 38 °F

    Rain/Snow

  • Tonight

    Tonight: Rain and snow likely before 10pm, then a chance of snow after 11pm. Mostly cloudy, with a low around 23. Blustery, with a west wind around 15 mph, with gusts as high as 18 mph. Chance of precipitation is 60%. New snow accumulation of less than a half inch possible.

    Low: 23 °F

    Rain/Snow
    Likely then
    Chance Snow
    and Blustery

  • Saturday

    Saturday: Sunny, with a high near 30. Windy, with a northwest wind 14 to 22 mph, with gusts as high as 26 mph.

    High: 30 °F

    Sunny and
    Windy

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 21. Blustery, with a northwest wind 16 to 21 mph decreasing to 8 to 13 mph after midnight. Winds could gust as high as 24 mph.

    Low: 21 °F

    Partly Cloudy
    and Blustery
    then Mostly
    Clear

  • Sunday

    Sunday: A 20 percent chance of snow. Mostly sunny, with a high near 37. Northwest wind 8 to 14 mph.

    High: 37 °F

    Slight Chance
    Snow

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 25. Blustery.

    Low: 25 °F

    Mostly Cloudy
    and Blustery
    then Mostly
    Cloudy

  • Monday

    Monday: Mostly cloudy, with a high near 40.

    High: 40 °F

    Mostly Cloudy

  • Monday Night

    Monday Night: A chance of snow after 11pm, mixing with rain after 2am. Mostly cloudy, with a low around 32.

    Low: 32 °F

    Chance Snow
    then Chance
    Rain/Snow

  • Tuesday

    Tuesday: Rain and snow. Cloudy, with a high near 37. Breezy.

    High: 37 °F

    Rain/Snow and
    Breezy

Detailed Forecast

This Afternoon
Rain before 5pm, then rain, possibly mixed with snow. Snow level 7800 feet. High near 38. West wind around 14 mph, with gusts as high as 20 mph. Chance of precipitation is 100%. Total daytime snow accumulation of less than a half inch possible.
Tonight
Rain and snow likely before 10pm, then a chance of snow after 11pm. Mostly cloudy, with a low around 23. Blustery, with a west wind around 15 mph, with gusts as high as 18 mph. Chance of precipitation is 60%. New snow accumulation of less than a half inch possible.
Saturday
Sunny, with a high near 30. Windy, with a northwest wind 14 to 22 mph, with gusts as high as 26 mph.
Saturday Night
Mostly clear, with a low around 21. Blustery, with a northwest wind 16 to 21 mph decreasing to 8 to 13 mph after midnight. Winds could gust as high as 24 mph.
Sunday
A 20 percent chance of snow. Mostly sunny, with a high near 37. Northwest wind 8 to 14 mph.
Sunday Night
Mostly cloudy, with a low around 25. Blustery.
Monday
Mostly cloudy, with a high near 40.
Monday Night
A chance of snow after 11pm, mixing with rain after 2am. Mostly cloudy, with a low around 32.
Tuesday
Rain and snow. Cloudy, with a high near 37. Breezy.
Tuesday Night
Rain and snow. Cloudy, with a low around 30. Breezy.
Wednesday
Snow. The snow could be heavy at times. Cloudy, with a high near 31. Windy.
Wednesday Night
Snow likely. Mostly cloudy, with a low around 20. Windy.
Thursday
A chance of snow. Mostly sunny, with a high near 35.
Thursday Night
Mostly clear, with a low around 22.
Friday
A slight chance of snow. Mostly sunny, with a high near 40. Breezy.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Mount St Helens WA
 46.2°N 122.21°W (Elev. 6598 ft)
Last Update:
3:41 pm PDT Mar 20, 2026
Forecast Valid:
4pm PDT Mar 20, 2026-6pm PDT Mar 27, 2026
 
Forecast Discussion
 
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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

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation