Portneuf River Slough Weather Forecast

    • 60
    • 85

    Mostly Sunny

    • 64
    • 91

    Partly Sunny

    • 65
    • 92

    Chance Rain Showers

    • 60
    • 84

    Chance Thunderstorms

    • 59
    • 81

    Chance Thunderstorms

    • 58
    • 81

    Chance Rain Showers

Today 19 Aug Marsh and Arbon Highlands

Sunny. Highs 81 to 91.

Tonight 19 Aug Marsh and Arbon Highlands

Mostly clear. Lows 54 to 64.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Portneuf River Slough Temperature Statistics

August Temperature

Pocatello, Pocatello Regional Airport (16.2 miles)

  • Lowest 6 August, 2026

    45.6 °F

  • Average August

    73.5 °F

  • Highest 1 August, 2026

    103.6 °F

Climate (2021–2026)

Pocatello, Pocatello Regional Airport (16.2 miles)

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  • Average Low 2021–2026

    35.2 °F

  • Average 2021–2026

    48.7 °F

  • Average High 2021–2026

    61.9 °F
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