| NWS Forecast for: 3 Miles NW Mount St Helens WA Issued by: National Weather Service Portland, OR Last Update: 2:41 am PDT Sep 9, 2026 |  |
| Overnight: Clear, with a low around 11. South southeast wind around 13 km/h. Wednesday: Sunny, with a high near 19. South southeast wind 5 to 10 km/h becoming calm. Wednesday Night: Increasing clouds, with a low around 11. West wind 3 to 8 km/h. Thursday: Mostly cloudy, with a high near 13. West wind 10 to 14 km/h. Thursday Night: Partly cloudy, with a low around 3. West northwest wind 8 to 13 km/h becoming light northwest after midnight. Friday: Partly sunny, with a high near 10. Friday Night: A 20 percent chance of rain after 11pm. Mostly cloudy, with a low around 5. Saturday: A chance of rain, then showers likely and possibly a thunderstorm after 11am. Mostly cloudy, with a high near 7. Saturday Night: A chance of rain. Mostly cloudy, with a low around 5. Sunday: A slight chance of rain. Partly sunny, with a high near 10. Sunday Night: Partly cloudy, with a low around 5. Monday: Sunny, with a high near 13. Monday Night: Mostly clear, with a low around 7. Tuesday: Mostly sunny, with a high near 14. | |
| 3 Miles NW Mount St Helens WA 46.22°N 122.22°W (Elev. 4341 m) | |
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