Chicago O'Hare International Airport Rainfall Forecast

  • No Rain
  • No Rain
  • 15%
  • 5%
  • 5%
  • 5%
  • 5%
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  • Rainfall Probability Forecast NOAA

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Chicago O'Hare International Airport Rainfall Statistics

August Rainfall

Chicago, Chicago-O'Hare International Airport (0 miles)

  • Total Rainfall August

    4.7in

  • Daily Average August

    0.2in

  • Wettest Day 18 August, 2025

    1.7in

  • Wet Days August

    7/21 (33%)

Climate (2010–Present)

Chicago, Chicago-O'Hare International Airport (0 miles)

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  • Annual Average 2020–2024

    33.7in

  • Monthly Average 2020–2025

    2.6in

  • Daily Average 2020–2025

    0.1in

  • Wettest Day 2 July, 2023

    3.4in
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