Old Baldy Mountain Weather Forecast

    • 59
    • 78

    Slight Chance Thunderstorms

    • 60
    • 81

    Patchy Smoke

    • 56
    • 83

    Mostly Sunny

    • 55
    • 78

    Mostly Sunny

    • 55
    • 77

    Mostly Sunny

    • 55
    • 77

    Mostly Sunny

Today 23 Jul Butte/Blackfoot Region

Mostly sunny in the Morning, then mostly cloudy with a 40 percent chance of Showers and Thunderstorms in the afternoon. Patchy smoke through the day. Highs in the 80s to lower 90s.

Tonight 23 Jul Butte/Blackfoot Region

Mostly clear. Patchy smoke through the night. A 30 percent chance of Showers and Thunderstorms in the evening. Lows in the 50s to lower 60s.

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Old Baldy Mountain Temperature Statistics

July Temperature

Helena Regional Airport (42.3 miles)

  • Lowest 2 July, 2026

    47.6 °F

  • Average July

    72.3 °F

  • Highest 11 July, 2026

    101.6 °F

Climate (2021–2026)

Helena Regional Airport (42.3 miles)

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  • Average Low 2021–2026

    36.4 °F

  • Average 2021–2026

    47.9 °F

  • Average High 2021–2026

    59.9 °F
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