Bruneau Arm Weather Forecast

    • 39
    • 76

    Mostly Sunny

    • 44
    • 80

    Partly Sunny

    • 43
    • 78

    Mostly Cloudy

    • 45
    • 76

    Chance Rain Showers

    • 44
    • 72

    Chance Rain Showers

    • 36
    • 63

    Mostly Sunny

Today 18 Oct Upper Treasure Valley

Sunny. Highs 70 to 75. Southeast Winds up to 10 Mph.

Tonight 18 Oct Upper Treasure Valley

Mostly clear. Lows 37 to 46. Southeast Winds 10 to 15 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Bruneau Arm Temperature Statistics

October Temperature

Mountain Home Air Force Base (9.3 miles)

  • Lowest 14 October, 2026

    33.6 °F

  • Average October

    59.8 °F

  • Highest 4 October, 2026

    89.8 °F

Climate (2021–2026)

Mountain Home Air Force Base (9.3 miles)

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  • Average Low 2021–2026

    40.1 °F

  • Average 2021–2026

    52.7 °F

  • Average High 2021–2026

    65.7 °F
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