Old Baldy Mountain Weather Forecast

    • 54
    • 80

    Slight Chance Rain

    • 51
    • 75

    Slight Chance Thunderstorms

    • 48
    • 70

    Mostly Sunny

    • 50
    • 72

    Mostly Sunny

    • 53
    • 77

    Mostly Sunny

    • 54
    • 78

    Partly Sunny

Today 19 Aug Butte/Blackfoot Region

Mostly sunny. A 20 percent chance of rain in the afternoon. Highs in the mid 80s to lower 90s.

Tonight 19 Aug Butte/Blackfoot Region

Partly cloudy. A 20 percent chance of rain in the evening. Lows in the upper 40s to mid 50s.

Graph Plots Open in Graphs

  • Temperature Forecast NOAA

  • Temperature Real-Time

Old Baldy Mountain Temperature Statistics

August Temperature

Helena Regional Airport (42.3 miles)

  • Lowest 7 August, 2025

    49.6 °F

  • Average August

    70 °F

  • Highest 12 August, 2025

    95.6 °F

Climate (2020–Present)

Helena Regional Airport (42.3 miles)

Take a look at our website widgetsAvailable free! Find Out More

  • Average Low 2020–2025

    36 °F

  • Average 2020–2025

    47.5 °F

  • Average High 2020–2025

    59.4 °F
Get WillyWeather+ to remove ads