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Climate almanac

Washington

Illinois, United States · 40.70°, -89.41°

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What is the weather like in Washington in July?

In July, Washington is typically 85°F (29°C) during the day and 68°F (20°C) at night. The month brings about 4.1 in (105 mm) of precipitation in total.

  • Average high85°F (29°C)
  • Average low68°F (20°C)
  • Precipitation4.1 in (105 mm)
  • Clear or mostly clear days12
  • Based on2016-2025 daily ERA5 reanalysis data (10-year normals)