| NWS Forecast for: 3 Miles S Mount St Helens WA Issued by: National Weather Service Portland, OR Last Update: 4:41 pm PDT May 19, 2026 |  |
| Tonight: Mostly cloudy, with a low around 45. West northwest wind 5 to 9 mph becoming light after midnight. Winds could gust as high as 18 mph. Wednesday: Mostly sunny, with a high near 60. Light and variable wind becoming north northwest 5 to 9 mph in the morning. Wednesday Night: Partly cloudy, with a low around 46. North northeast wind 5 to 10 mph, with gusts as high as 18 mph. Thursday: Sunny, with a high near 68. North northeast wind around 6 mph becoming light and variable. Thursday Night: Mostly clear, with a low around 50. North wind 5 to 9 mph. Friday: Sunny, with a high near 68. Friday Night: Mostly clear, with a low around 49. Saturday: Mostly sunny, with a high near 64. Saturday Night: Partly cloudy, with a low around 46. Sunday: Mostly sunny, with a high near 62. Sunday Night: A slight chance of rain. Mostly cloudy, with a low around 44. Memorial Day: Rain likely. Mostly cloudy, with a high near 49. Monday Night: A chance of rain. Mostly cloudy, with a low around 39. Tuesday: A slight chance of rain. Mostly sunny, with a high near 56. | |
| 3 Miles S Mount St Helens WA 46.14°N 122.17°W (Elev. 2710 ft) | |
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