Helena Rainfall Forecast

  • 65%
  • 50%
  • 60%
  • 80%
  • 10%
  • 5%
  • 10%
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  • Rainfall Probability Forecast NOAA

  • Rain Today Real-Time

Helena Rainfall Statistics

May Rainfall

St. Joseph, Rosecrans Memorial Airport (16.8 miles)

  • Total Rainfall May

    0.01in

  • Daily Average May

    0in

  • Wettest Day 8 May, 2026

    0.01in

  • Wet Days May

    1/16 (6%)

Climate (2010–Present)

St. Joseph, Rosecrans Memorial Airport (16.8 miles)

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  • Annual Average 2021–2025

    32.5in

  • Monthly Average 2021–2026

    2.7in

  • Daily Average 2021–2026

    0.1in

  • Wettest Day 7 July, 2022

    4.6in
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