Great Divide Snowsports Weather Forecast

    • 54
    • 68

    Mostly Cloudy

    • 58
    • 76

    Mostly Sunny

    • 58
    • 81

    Mostly Sunny

    • 55
    • 77

    Mostly Sunny

    • 50
    • 73

    Mostly Sunny

    • 51
    • 70

    Mostly Sunny

Today 17 Aug Upper Blackfoot and MacDonald Pass

Not as warm. Mostly cloudy. A 50 percent chance of Thunderstorms in the afternoon. Highs 70 to 75. West Winds up to 10 Mph.

Tonight 17 Aug Upper Blackfoot and MacDonald Pass

Mostly cloudy with a 20 percent chance of Thunderstorms in the Evening, then mostly clear after midnight. Lows 50 to 55. Southwest Winds up to 10 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Great Divide Snowsports Temperature Statistics

August Temperature

Helena Regional Airport (18 miles)

  • Lowest 7 August, 2025

    49.6 °F

  • Average August

    69.7 °F

  • Highest 12 August, 2025

    95.6 °F

Climate (2020–Present)

Helena Regional Airport (18 miles)

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  • Average Low 2020–2025

    36 °F

  • Average 2020–2025

    47.5 °F

  • Average High 2020–2025

    59.4 °F
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