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Climate almanac

Kewanee

Illinois, United States · 41.25°, -89.92°

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What is the weather like in Kewanee in September?

In September, Kewanee is typically 79°F (26°C) during the day and 59°F (15°C) at night. The month brings about 3.0 in (76 mm) of precipitation in total.

  • Average high79°F (26°C)
  • Average low59°F (15°C)
  • Precipitation3.0 in (76 mm)
  • Clear or mostly clear days15
  • Based on2016-2025 daily ERA5 reanalysis data (10-year normals)