Arnolds Park Weather Forecast

    • 49
    • 71

    Partly Sunny

    • 59
    • 69

    Chance Rain Showers

    • 61
    • 74

    Rain Showers

    • 61
    • 77

    Rain Showers Likely

    • 57
    • 72

    Chance Rain Showers

    • 54
    • 66

    Slight Chance Rain Showers

Today 15 Sep Dickinson

Mostly sunny. Highs in the lower 70s. Northwest Winds 5 to 10 Mph.

Tonight 15 Sep Dickinson

Mostly cloudy this Evening, then becoming partly cloudy. Lows in the upper 40s. Northeast Winds around 5 Mph.

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Arnolds Park Temperature Statistics

September Temperature

Spencer Municipal Airport (14.3 miles)

  • Lowest 13 September, 2026

    45 °F

  • Average September

    72.7 °F

  • Highest 4 September, 2026

    94.6 °F

Climate (2021–2026)

Spencer Municipal Airport (14.3 miles)

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  • Average Low 2021–2026

    37.5 °F

  • Average 2021–2026

    49.4 °F

  • Average High 2021–2026

    61.1 °F
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