St. Charles Airport Rainfall Forecast

  • No Rain
  • 15%
  • No Rain
  • 30%
  • 20%
  • 15%
  • 10%
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  • Rainfall Probability Forecast NOAA

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St. Charles Airport Rainfall Statistics

August Rainfall

St. Charles, St. Charles County Smartt Airport (6.2 miles)

  • Total Rainfall August

    2.1in

  • Daily Average August

    0.1in

  • Wettest Day 16 August, 2026

    1.2in

  • Wet Days August

    8/21 (38%)

Climate (2021–2025)

St. Charles, St. Charles County Smartt Airport (6.2 miles)

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  • Annual Average 2021–2025

    36.2in

  • Monthly Average 2021–2026

    2.9in

  • Daily Average 2021–2026

    0.1in

  • Wettest Day 16 July, 2024

    3.8in
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