Steffan Reservoir Weather Forecast

    • 49
    • 75

    Mostly Sunny

    • 49
    • 66

    Mostly Sunny

    • 57
    • 68

    Mostly Sunny

    • 57
    • 77

    Mostly Sunny

    • 58
    • 73

    Partly Sunny

    • 58
    • 72

    Mostly Sunny

Today 3 Oct Knox

Mostly sunny and breezy. Highs in the mid 70s. South Winds 20 to 25 Mph, becoming southwest 15 to 20 Mph this afternoon.

Tonight 3 Oct Knox

Mostly clear. Lows in the upper 40s. Northwest Winds 5 to 10 Mph.

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Steffan Reservoir Temperature Statistics

October Temperature

Yankton, Chan Gurney Municipal Airport (11.2 miles)

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  • Average October

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Climate (2021–2026)

Yankton, Chan Gurney Municipal Airport (11.2 miles)

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  • Average Low 2021–2026

    39.4 °F

  • Average 2021–2026

    50.5 °F

  • Average High 2021–2026

    61.7 °F
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