Great Falls Rainfall Forecast

  • 80%
  • 65%
  • No Rain
  • 10%
  • 50%
  • 30%
  • 10%
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  • Rainfall Probability Forecast NOAA

  • Rain Today Real-Time

Great Falls Rainfall Statistics

May Rainfall

Great Falls, Great Falls International Airport (3.7 miles)

  • Total Rainfall May

    0.3in

  • Daily Average May

    0.03in

  • Wettest Day 9 May, 2026

    0.2in

  • Wet Days May

    4/13 (31%)

Climate (2010–Present)

Great Falls, Great Falls International Airport (3.7 miles)

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  • Annual Average 2021–2025

    13.9in

  • Monthly Average 2021–2026

    1.2in

  • Daily Average 2021–2026

    0.04in

  • Wettest Day 2 June, 2023

    1.4in
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