Middle Creek Lake Weather Forecast

    • 59
    • 77

    Chance Rain Showers

    • 58
    • 84

    Mostly Sunny

    • 54
    • 80

    Slight Chance Thunderstorms

    • 49
    • 72

    Mostly Sunny

    • 50
    • 71

    Mostly Sunny

    • 53
    • 77

    Mostly Sunny

    • 56
    • 79

    Mostly Sunny

Today 18 Aug Big Belt

Sunny with a 20 percent chance of Thunderstorms. Highs 75 to 85. Southwest Winds up to 10 Mph.

Tonight 18 Aug Big Belt

Partly cloudy. A 20 percent chance of Thunderstorms in the evening. Lows 55 to 60. Southeast Winds up to 10 Mph.

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Middle Creek Lake Temperature Statistics

August Temperature

Helena Regional Airport (26.7 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 (26.7 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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