Chief Plenty Coups State Park Weather Forecast

    • 58
    • 86

    Chance Rain Showers

    • 61
    • 89

    Mostly Sunny

    • 64
    • 95

    Mostly Sunny

    • 62
    • 96

    Mostly Sunny

    • 57
    • 85

    Mostly Sunny

    • 53
    • 76

    Partly Sunny

Today 17 Aug Southern Big Horn

Mostly sunny. Highs in the lower 90s. Northeast Winds 5 to 10 Mph.

Tonight 17 Aug Southern Big Horn

Mostly cloudy. Chance of Showers and Thunderstorms early in the Evening, then slight chance of Showers and Thunderstorms late in the evening. Lows in the upper 50s. South Winds 5 to 10 Mph. Chance of precipitation 30 percent.

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Chief Plenty Coups State Park Temperature Statistics

August Temperature

Billings, Billings Logan International Airport (26.1 miles)

  • Lowest 10 August, 2025

    53.7 °F

  • Average August

    72.9 °F

  • Highest 13 August, 2025

    98.7 °F

Climate (2020–Present)

Billings, Billings Logan International Airport (26.1 miles)

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  • Average Low 2020–2025

    38.5 °F

  • Average 2020–2025

    49.3 °F

  • Average High 2020–2025

    60.5 °F
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