Chesterfield Reservoir Weather Forecast

    • 22
    • 53

    Becoming Sunny

    • 25
    • 50

    Increasing Clouds

    • 29
    • 52

    Partly Sunny

    • 33
    • 57

    Partly Sunny

    • 34
    • 61

    Mostly Sunny

    • 35
    • 61

    Partly Sunny

    • 36
    • 60

    Partly Sunny

Today 29 Oct Blackfoot Mountains

Mostly sunny. Not as cool. Highs 46 to 54.

Tonight 29 Oct Blackfoot Mountains

Mostly clear. Lows 19 to 29.

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Chesterfield Reservoir Temperature Statistics

October Temperature

Pocatello, Pocatello Regional Airport (30.4 miles)

  • Lowest 21 October, 2025

    25 °F

  • Average October

    48.3 °F

  • Highest 9 October, 2025

    81 °F

Climate (2020–Present)

Pocatello, Pocatello Regional Airport (30.4 miles)

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  • Average Low 2020–2025

    34.9 °F

  • Average 2020–2025

    48.2 °F

  • Average High 2020–2025

    61.2 °F
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