| NWS Forecast for: Mount St Helens WA Issued by: National Weather Service Portland, OR Last Update: 12:41 am PDT Jul 16, 2025 |  |
| Overnight: Clear, with a low around 53. Breezy, with an east southeast wind 13 to 15 mph, with gusts as high as 20 mph. Wednesday: Widespread haze between 8am and 10am. Sunny, with a high near 67. Southeast wind 5 to 13 mph becoming northwest in the afternoon. Wednesday Night: Mostly clear, with a low around 51. West wind 6 to 9 mph. Thursday: Sunny, with a high near 63. West wind 6 to 10 mph. Thursday Night: Mostly clear, with a low around 50. Northwest wind 6 to 11 mph. Friday: Sunny, with a high near 62. Friday Night: Partly cloudy, with a low around 46. Saturday: Mostly sunny, with a high near 53. Saturday Night: Partly cloudy, with a low around 45. Breezy. Sunday: Mostly sunny, with a high near 53. Sunday Night: Partly cloudy, with a low around 46. Monday: Mostly sunny, with a high near 54. Monday Night: Partly cloudy, with a low around 46. Tuesday: Mostly sunny, with a high near 56. | |
| Mount St Helens WA 46.2°N 122.18°W (Elev. 5997 ft) | |
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