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Climate almanac

Wilsonville

Oregon, United States · 45.30°, -122.77°

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What is the weather like in Wilsonville in September?

In September, Wilsonville is typically 79°F (26°C) during the day and 54°F (12°C) at night. The month brings about 1.8 in (45 mm) of precipitation in total.

  • Average high79°F (26°C)
  • Average low54°F (12°C)
  • Precipitation1.8 in (45 mm)
  • Clear or mostly clear days13
  • Based on2016-2025 daily ERA5 reanalysis data (10-year normals)