Avon Weather Forecast

    • 27
    • 52

    Decreasing Clouds

    • 29
    • 50

    Rain/Snow Likely

    • 25
    • 45

    Rain/Snow

    • 23
    • 46

    Partly Sunny

    • 25
    • 51

    Partly Sunny

    • 23
    • 50

    Partly Sunny

Today 30 Oct Butte/Blackfoot Region

Mostly cloudy. Highs in the mid 40s to lower 50s.

Tonight 30 Oct Butte/Blackfoot Region

Mostly cloudy. A 20 percent chance of rain in the evening. Lows in the upper 20s to mid 30s.

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Avon Temperature Statistics

October Temperature

Helena Regional Airport (28.6 miles)

  • Lowest 24 October, 2026

    22.6 °F

  • Average October

    48 °F

  • Highest 9 October, 2026

    82.7 °F

Climate (2021–2026)

Helena Regional Airport (28.6 miles)

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  • Average Low 2021–2026

    36.3 °F

  • Average 2021–2026

    47.9 °F

  • Average High 2021–2026

    59.9 °F
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