| NWS Forecast for: 3 Miles S Mount St Helens WA Issued by: National Weather Service Portland, OR Last Update: 11:41 pm PDT Jul 18, 2026 | |
| Overnight: Mostly clear, with a low around 51. West wind 3 to 5 mph. Sunday: Sunny, with a high near 75. Calm wind becoming southwest around 6 mph in the afternoon. Sunday Night: Increasing clouds, with a low around 59. East northeast wind around 5 mph becoming light and variable. Monday: Mostly cloudy, with a high near 79. Light and variable wind. Monday Night: Mostly cloudy, with a low around 67. Calm wind. Tuesday: Partly sunny, with a high near 83. Tuesday Night: Mostly cloudy, with a low around 68. Wednesday: Mostly sunny, with a high near 82. Wednesday Night: Partly cloudy, with a low around 62. Thursday: Mostly sunny, with a high near 76. Thursday Night: Mostly clear, with a low around 57. Friday: Sunny, with a high near 72. Friday Night: Mostly clear, with a low around 54. Saturday: Sunny, with a high near 69. | |
| 3 Miles S Mount St Helens WA 46.14°N 122.17°W (Elev. 2710 ft) | |
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