Chesterfield Weather Forecast

    • 43
    • 73

    Mostly Sunny

    • 43
    • 74

    Mostly Sunny

    • 45
    • 70

    Partly Sunny

    • 43
    • 72

    Chance Rain

    • 36
    • 61

    Slight Chance Thunderstorms

    • 35
    • 60

    Mostly Sunny

Today 24 Sep Blackfoot Mountains

Sunny. Highs 68 to 76.

Tonight 24 Sep Blackfoot Mountains

Partly cloudy. Lows 40 to 50.

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Chesterfield Temperature Statistics

September Temperature

Pocatello, Pocatello Regional Airport (33.6 miles)

  • Lowest 15 September, 2026

    30.7 °F

  • Average September

    62.2 °F

  • Highest 6 September, 2026

    88.6 °F

Climate (2021–2026)

Pocatello, Pocatello Regional Airport (33.6 miles)

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  • Average Low 2021–2026

    35.2 °F

  • Average 2021–2026

    48.8 °F

  • Average High 2021–2026

    61.9 °F
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