Portneuf River Slough Weather Forecast

    • 47
    • 69

    Mostly Sunny

    • 40
    • 72

    Increasing Clouds

    • 29
    • 51

    Partly Sunny

    • 39
    • 62

    Mostly Cloudy

    • 44
    • 70

    Partly Sunny

    • 46
    • 72

    Partly Sunny

    • 44
    • 68

    Chance Rain

Today 24 Mar Marsh and Arbon Highlands

Partly sunny in the morning then clearing. Highs 64 to 74.

Tonight 24 Mar Marsh and Arbon Highlands

Mostly clear. Lows 42 to 51.

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Portneuf River Slough Temperature Statistics

March Temperature

Pocatello, Pocatello Regional Airport (16.2 miles)

  • Lowest 15 March, 2026

    17.7 °F

  • Average March

    45 °F

  • Highest 18 March, 2026

    77.6 °F

Climate (2021–Present)

Pocatello, Pocatello Regional Airport (16.2 miles)

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  • Average Low 2021–2026

    35.3 °F

  • Average 2021–2026

    48.8 °F

  • Average High 2021–2026

    61.7 °F
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