Willamina, OR Weather Forecast
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Willamina Weather Forecast
| REST OF TONIGHT | SATURDAY | SATURDAY NIGHT | SUNDAY | SUNDAY NIGHT | LABOR DAY | MONDAY NIGHT | TUESDAY | TUESDAY NIGHT | WEDNESDAY | WEDNESDAY NIGHT | THURSDAY |
| Patchy Fog | Mostly Sunny | Chance of Showers | Chance of Showers | Chance of Showers | Mostly Sunny | Mostly Clear | Mostly Sunny | Mostly Clear | Sunny | Mostly Clear | Mostly Sunny |
| Lo: 50°FLo: 10°C | Hi: 71°FHi: 22°C | Lo: 50°FLo: 10°C | Hi: 71°FHi: 22°C | Lo: 51°FLo: 11°C | Hi: 71°FHi: 22°C | Lo: 50°FLo: 10°C | Hi: 79°FHi: 26°C | Lo: 51°FLo: 11°C | Hi: 85°FHi: 29°C | Lo: 55°FLo: 13°C | Hi: 81°FHi: 27°C |
| POP: 20% | POP: 40% | POP: 20% |
POP = Probability of Precipitation.
Weather Outlook Updated: 202 AM PDT Sat Sep 05 2026 

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Issued: 208 AM PDT Sat Sep 5 2026
Discussion
...Saturday through Friday...The upper level low pressure system remains situated over the PacNW this weekend as the surface low has weakened over the coast. Very light winds early Saturday morning through Sunday morning with clearing upper level clouds will lead to the potential of low stratus or fog development in the morning hours each day along the coast and interior lowlands. Multiple weak shortwaves embedded within the larger upper low pressure circulation will bring additional s...
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