Bruneau Dunes State Park Weather Forecast

    • 53
    • 83

    Rain Showers Likely

    • 50
    • 78

    Chance Rain Showers

    • 51
    • 79

    Chance Rain Showers

    • 51
    • 80

    Mostly Sunny

    • 51
    • 85

    Chance Rain Showers

    • 49
    • 78

    Slight Chance Rain Showers

Today 10 Sep Upper Treasure Valley

Partly cloudy. A slight chance of Showers this Morning, then a chance of Showers and Thunderstorms this afternoon. Patchy smoke this afternoon. Thunderstorms may produce heavy Rainfall, gusty Winds, and small hail this afternoon. Chance of rain 30 percent. Highs 79 to 84. Northwest Winds 10 to 15 Mph.

Tonight 10 Sep Upper Treasure Valley

Showers likely with a chance of Thunderstorms in the Evening, then a chance of Showers after midnight. Areas of fog after midnight. Thunderstorms may produce heavy Rainfall, gusty Winds, and small hail in the evening. Chance of rain 70 percent. Lows 50 to 57. West Winds 10 to 15 Mph.

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  • Temperature Real-Time

Bruneau Dunes State Park Temperature Statistics

September Temperature

Mountain Home Air Force Base (13 miles)

  • Lowest 8 September, 2025

    55.8 °F

  • Average September

    74 °F

  • Highest 3 September, 2025

    97.3 °F

Climate (2020–Present)

Mountain Home Air Force Base (13 miles)

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  • Average Low 2020–2025

    39.6 °F

  • Average 2020–2025

    52.2 °F

  • Average High 2020–2025

    65 °F
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