Portneuf River Slough Weather Forecast

    • 45
    • 73

    Sunny

    • 47
    • 73

    Mostly Sunny

    • 48
    • 76

    Mostly Sunny

    • 39
    • 69

    Mostly Cloudy

    • 38
    • 59

    Partly Sunny

    • 43
    • 62

    Mostly Cloudy

    • 44
    • 66

    Mostly Cloudy

Today 18 Mar Marsh and Arbon Highlands

Sunny. Highs 65 to 75.

Tonight 18 Mar Marsh and Arbon Highlands

Clear. Lows 40 to 50.

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Portneuf River Slough Temperature Statistics

March Temperature

Pocatello, Pocatello Regional Airport (16.2 miles)

  • Lowest 15 March, 2026

    17.1 °F

  • Average March

    42.6 °F

  • Highest 13 March, 2026

    61 °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

    48.7 °F

  • Average High 2021–2026

    61.6 °F
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