| NWS Forecast for: Mount St Helens WA Issued by: National Weather Service Portland, OR Last Update: 12:41 am PDT Oct 14, 2026 |  |
| Overnight: Mostly cloudy, with a low around 40. West wind around 6 mph. Wednesday: Mostly sunny, with a high near 50. West northwest wind around 6 mph becoming calm in the morning. Wednesday Night: Mostly clear, with a low around 43. Breezy, with a light and variable wind becoming south southeast 10 to 15 mph in the evening. Thursday: Sunny, with a high near 54. Breezy, with a southeast wind 11 to 18 mph, with gusts as high as 25 mph. Thursday Night: Mostly clear, with a low around 47. Windy, with an east southeast wind 8 to 13 mph increasing to 17 to 22 mph in the evening. Friday: Sunny, with a high near 58. Breezy. Friday Night: Partly cloudy, with a low around 40. Saturday: Rain likely before 11am. Snow level 8500 feet lowering to 6400 feet in the afternoon . Partly sunny, with a high near 42. Saturday Night: Partly cloudy, with a low around 32. Sunday: Mostly sunny, with a high near 42. Sunday Night: Mostly cloudy, with a low around 34. Monday: A chance of rain and snow. Snow level 5500 feet. Mostly cloudy, with a high near 36. Monday Night: A chance of rain and snow. Snow level 5400 feet. Mostly cloudy, with a low around 34. Tuesday: A slight chance of rain and snow. Snow level 5400 feet. Partly sunny, with a high near 40. | |
| Mount St Helens WA 46.21°N 122.15°W (Elev. 5259 ft) | |
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