Indian Creek Reservoir Weather Forecast

    • 53
    • 71

    Chance Rain Showers

    • 53
    • 74

    Partly Sunny

    • 55
    • 79

    Mostly Sunny

    • 56
    • 82

    Partly Sunny

    • 56
    • 83

    Mostly Sunny

    • 57
    • 84

    Mostly Sunny

    • 60
    • 87

    Partly Sunny

Today 18 Sep Upper Treasure Valley

Partly cloudy. Lows 54 to 61. Highs 84 to 89. Breezy.

Tonight 18 Sep Upper Treasure Valley

Mostly cloudy with a chance of Showers with a slight chance of Thunderstorms. Patchy smoke this evening. Areas of fog after midnight. Chance of rain 30 percent. Lows 48 to 54. Northwest Winds 10 to 15 Mph. Gusts to 25 Mph this evening.

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Indian Creek Reservoir Temperature Statistics

September Temperature

Boise Air Terminal (16.2 miles)

  • Lowest 3 September, 2026

    46.7 °F

  • Average September

    65.4 °F

  • Highest 12 September, 2026

    90.6 °F

Climate (2021–2026)

Boise Air Terminal (16.2 miles)

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  • Average Low 2021–2026

    44.1 °F

  • Average 2021–2026

    54.9 °F

  • Average High 2021–2026

    66.2 °F
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