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 56%
Wind Speed SSE 2 MPH
Barometer NA
Dewpoint 32°F (0°C)
Visibility NA
Last update 21 Mar 04:52 PM PDT
Extended Forecast for

Mount St Helens WA

  • Tonight

    Tonight: Mostly clear, with a low around 20. Windy, with a west northwest wind 17 to 22 mph decreasing to 9 to 14 mph in the evening. Winds could gust as high as 25 mph.

    Low: 20 °F

    Partly Cloudy
    and Windy
    then Clear

  • Sunday

    Sunday: Mostly sunny, with a high near 36. North wind 7 to 14 mph becoming west northwest in the morning.

    High: 36 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 26. North wind 11 to 14 mph.

    Low: 26 °F

    Mostly Cloudy

  • Monday

    Monday: Partly sunny, with a high near 40. North wind 8 to 13 mph becoming west in the morning.

    High: 40 °F

    Partly Sunny

  • Monday Night

    Monday Night: Snow showers likely after 11pm.  Cloudy, with a low around 30. West northwest wind 9 to 14 mph becoming southeast in the evening.  Chance of precipitation is 60%. New snow accumulation of less than one inch possible.

    Low: 30 °F

    Snow Showers
    Likely

  • Tuesday

    Tuesday: Snow showers. The snow could be heavy at times.  High near 34. Windy.  Chance of precipitation is 100%. New snow accumulation of 3 to 7 inches possible.

    High: 34 °F

    Heavy Snow
    and Windy

  • Tuesday Night

    Tuesday Night: Rain and snow, becoming all snow after 2am.  Low around 26. Windy.  Chance of precipitation is 100%. New snow accumulation of 2 to 4 inches possible.

    Low: 26 °F

    Rain/Snow and
    Windy then
    Rain/Snow
    Likely and
    Breezy

  • Wednesday

    Wednesday: Snow.  Cloudy, with a high near 31. Windy.

    High: 31 °F

    Snow and
    Windy

  • Wednesday Night

    Wednesday Night: Snow, mainly before 11pm.  Mostly cloudy, with a low around 21. Windy.

    Low: 21 °F

    Snow and
    Windy

Detailed Forecast

Tonight
Mostly clear, with a low around 20. Windy, with a west northwest wind 17 to 22 mph decreasing to 9 to 14 mph in the evening. Winds could gust as high as 25 mph.
Sunday
Mostly sunny, with a high near 36. North wind 7 to 14 mph becoming west northwest in the morning.
Sunday Night
Mostly cloudy, with a low around 26. North wind 11 to 14 mph.
Monday
Partly sunny, with a high near 40. North wind 8 to 13 mph becoming west in the morning.
Monday Night
Snow showers likely after 11pm. Cloudy, with a low around 30. West northwest wind 9 to 14 mph becoming southeast in the evening. Chance of precipitation is 60%. New snow accumulation of less than one inch possible.
Tuesday
Snow showers. The snow could be heavy at times. High near 34. Windy. Chance of precipitation is 100%. New snow accumulation of 3 to 7 inches possible.
Tuesday Night
Rain and snow, becoming all snow after 2am. Low around 26. Windy. Chance of precipitation is 100%. New snow accumulation of 2 to 4 inches possible.
Wednesday
Snow. Cloudy, with a high near 31. Windy.
Wednesday Night
Snow, mainly before 11pm. Mostly cloudy, with a low around 21. Windy.
Thursday
A chance of snow. Partly sunny, with a high near 34.
Thursday Night
A slight chance of snow. Partly cloudy, with a low around 22. Blustery.
Friday
A slight chance of snow. Mostly sunny, with a high near 41.
Friday Night
Mostly clear, with a low around 26.
Saturday
A slight chance of snow. Sunny, with a high near 44.
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ABOUT THIS FORECAST

 
Point Forecast:
Mount St Helens WA
 46.2°N 122.21°W (Elev. 6598 ft)
4:41 pm PDT Mar 21, 2026
5pm PDT Mar 21, 2026-6pm PDT Mar 28, 2026
 
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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