Izaak Walton County Park Weather Forecast

    • 42
    • 65

    Decreasing Clouds

    • 47
    • 70

    Chance Rain Showers

    • 42
    • 64

    Mostly Sunny

    • 42
    • 67

    Mostly Sunny

    • 48
    • 69

    Mostly Sunny

    • 54
    • 74

    Chance Rain Showers

Today 3 Sep Hardin

Mostly cloudy. Near steady temperature in the mid 60s. Northwest Winds 10 to 15 Mph.

Tonight 3 Sep Hardin

Partly sunny Early, then becoming partly cloudy. Areas of smoke. Much cooler with Lows in the lower 40s. Northwest Winds 10 to 15 Mph, Diminishing to around 5 Mph after midnight.

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Izaak Walton County Park Temperature Statistics

September Temperature

Iowa Falls Municipal Airport (5.6 miles)

  • Lowest 1 September, 2025

    54.5 °F

  • Average September

    66.1 °F

  • Highest 1 September, 2025

    77.5 °F

Climate (2020–Present)

Iowa Falls Municipal Airport (5.6 miles)

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  • Average Low 2020–2025

    39.2 °F

  • Average 2020–2025

    49.5 °F

  • Average High 2020–2025

    59.9 °F
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