Petticoat Peak Weather Forecast

    • 45
    • 59

    Rain Showers

    • 44
    • 51

    Rain Showers Likely

    • 45
    • 58

    Partly Sunny

    • 49
    • 64

    Partly Sunny

    • 49
    • 65

    Partly Sunny

    • 49
    • 66

    Mostly Sunny

    • 51
    • 68

    Mostly Sunny

Today 18 Sep Marsh and Arbon Highlands

Partly cloudy. Lows 45 to 55. Highs 72 to 81.

Tonight 18 Sep Marsh and Arbon Highlands

Rain Showers likely and a chance of Thunderstorms in the evening. Then partly cloudy with a slight chance of Showers and Thunderstorms after midnight. Colder. Lows 39 to 49.

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Petticoat Peak Temperature Statistics

September Temperature

Pocatello, Pocatello Regional Airport (36 miles)

  • Lowest 15 September, 2026

    33.1 °F

  • Average September

    63.3 °F

  • Highest 6 September, 2026

    88.6 °F

Climate (2021–2026)

Pocatello, Pocatello Regional Airport (36 miles)

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  • Average Low 2021–2026

    35.2 °F

  • Average 2021–2026

    48.8 °F

  • Average High 2021–2026

    61.9 °F
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