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Climate almanac

Jacksonville

Illinois, United States · 39.73°, -90.23°

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What is the weather like in Jacksonville in June?

In June, Jacksonville is typically 86°F (30°C) during the day and 67°F (19°C) at night. The month brings about 4.4 in (111 mm) of precipitation in total.

  • Average high86°F (30°C)
  • Average low67°F (19°C)
  • Precipitation4.4 in (111 mm)
  • Clear or mostly clear days13
  • Based on2016-2025 daily ERA5 reanalysis data (10-year normals)