Old Tom Mountain Weather Forecast

    • 62
    • 83

    Chance Rain Showers

    • 57
    • 73

    Rain Showers

    • 52
    • 67

    Rain Showers

    • 49
    • 66

    Slight Chance Thunderstorms

    • 52
    • 70

    Chance Rain Showers

    • 52
    • 72

    Partly Sunny

    • 51
    • 68

    Partly Sunny

Today 27 Aug Marsh and Arbon Highlands

Mostly sunny. A slight chance of Showers and Thunderstorms in the afternoon. Some Thunderstorms may produce gusty Winds and heavy rainfall in the afternoon. Highs 84 to 94.

Tonight 27 Aug Marsh and Arbon Highlands

Mostly cloudy. A slight chance of Showers and Thunderstorms in the evening. Lows 56 to 66.

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Old Tom Mountain Temperature Statistics

August Temperature

Pocatello, Pocatello Regional Airport (23.6 miles)

  • Lowest 6 August, 2026

    45.6 °F

  • Average August

    74.2 °F

  • Highest 1 August, 2026

    103.6 °F

Climate (2021–2026)

Pocatello, Pocatello Regional Airport (23.6 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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