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

51°F

11°C

Humidity 74%
Wind Speed SSE 5 MPH
Barometer NA
Dewpoint 43°F (6°C)
Visibility NA
Last update 20 Mar 05:52 AM PDT
Extended Forecast for

Mount St Helens WA

  • Today

    Today: Rain before 5pm, then rain, possibly mixed with snow. Snow level 9300 feet lowering to 8100 feet in the afternoon . High near 40. West southwest wind around 14 mph, with gusts as high as 21 mph. Chance of precipitation is 100%. Total daytime snow accumulation of less than a half inch possible.

    High: 40 °F

    Rain then
    Rain/Snow

  • Tonight

    Tonight: Rain and snow likely before 9pm, then a chance of snow between 9pm and 4am. Mostly cloudy, with a low around 24. West wind 11 to 14 mph, with gusts as high as 18 mph. Chance of precipitation is 70%. New snow accumulation of less than one inch possible.

    Low: 24 °F

    Rain/Snow
    Likely then
    Chance Snow

  • Saturday

    Saturday: A 50 percent chance of snow. Mostly cloudy, then gradually becoming sunny, with a high near 32. Breezy, with a west northwest wind 13 to 17 mph, with gusts as high as 23 mph. New snow accumulation of less than a half inch possible.

    High: 32 °F

    Chance Snow
    and Breezy

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 21. Blustery, with a west northwest wind 13 to 18 mph decreasing to 7 to 12 mph after midnight. Winds could gust as high as 25 mph.

    Low: 21 °F

    Mostly Clear
    and Blustery
    then Mostly
    Clear

  • Sunday

    Sunday: A 30 percent chance of snow, mainly after 11am. Mostly sunny, with a high near 37. West northwest wind 7 to 11 mph. Little or no snow accumulation expected.

    High: 37 °F

    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 41.

    High: 41 °F

    Mostly Cloudy

  • Monday Night

    Monday Night: Snow likely before 2am, then rain and snow likely. Mostly cloudy, with a low around 31.

    Low: 31 °F

    Snow Likely
    then
    Rain/Snow
    Likely

  • Tuesday

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

    High: 37 °F

    Rain/Snow and
    Breezy

Detailed Forecast

Today
Rain before 5pm, then rain, possibly mixed with snow. Snow level 9300 feet lowering to 8100 feet in the afternoon . High near 40. West southwest wind around 14 mph, with gusts as high as 21 mph. Chance of precipitation is 100%. Total daytime snow accumulation of less than a half inch possible.
Tonight
Rain and snow likely before 9pm, then a chance of snow between 9pm and 4am. Mostly cloudy, with a low around 24. West wind 11 to 14 mph, with gusts as high as 18 mph. Chance of precipitation is 70%. New snow accumulation of less than one inch possible.
Saturday
A 50 percent chance of snow. Mostly cloudy, then gradually becoming sunny, with a high near 32. Breezy, with a west northwest wind 13 to 17 mph, with gusts as high as 23 mph. New snow accumulation of less than a half inch possible.
Saturday Night
Mostly clear, with a low around 21. Blustery, with a west northwest wind 13 to 18 mph decreasing to 7 to 12 mph after midnight. Winds could gust as high as 25 mph.
Sunday
A 30 percent chance of snow, mainly after 11am. Mostly sunny, with a high near 37. West northwest wind 7 to 11 mph. Little or no snow accumulation expected.
Sunday Night
Mostly cloudy, with a low around 25. Blustery.
Monday
Mostly cloudy, with a high near 41.
Monday Night
Snow likely before 2am, then rain and snow likely. Mostly cloudy, with a low around 31.
Tuesday
Rain and snow. Cloudy, with a high near 37. Breezy.
Tuesday Night
Rain and snow. The snow could be heavy at times. Cloudy, with a low around 26. Breezy.
Wednesday
Rain and snow. Cloudy, with a high near 31. Breezy.
Wednesday Night
Snow likely. Mostly cloudy, with a low around 21. Breezy.
Thursday
A chance of snow. Partly sunny, with a high near 36.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Mount St Helens WA
 46.18°N 122.18°W (Elev. 6204 ft)
Last Update:
6:41 am PDT Mar 20, 2026
Forecast Valid:
6am PDT Mar 20, 2026-6pm PDT Mar 26, 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