Portneuf River Slough Weather Forecast

    • 33
    • 36

    Snow Likely

    • 27
    • 43

    Rain/Snow

    • 30
    • 37

    Rain/Snow Likely

    • 37
    • 41

    Rain

    • 35
    • 43

    Rain Likely

    • 38
    • 45

    Chance Rain

Today 18 Dec Marsh and Arbon Highlands

Mostly cloudy. A chance of snow in the afternoon. Snow accumulation up to 2 Inches. Highs 33 to 42.

Tonight 18 Dec Marsh and Arbon Highlands

Mostly cloudy with a slight chance of rain and snow. Lows 28 to 35.

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Portneuf River Slough Temperature Statistics

December Temperature

Pocatello, Pocatello Regional Airport (16.2 miles)

  • Lowest 14 December, 2025

    18 °F

  • Average December

    39.6 °F

  • Highest 10 December, 2025

    57 °F

Climate (2020–Present)

Pocatello, Pocatello Regional Airport (16.2 miles)

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  • Average Low 2020–2025

    35.1 °F

  • Average 2020–2025

    48.5 °F

  • Average High 2020–2025

    61.4 °F
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