Steffan Reservoir Weather Forecast

    • 68
    • 88

    Breezy

    • 57
    • 85

    Partly Sunny

    • 50
    • 72

    Partly Sunny

    • 52
    • 66

    Partly Sunny

    • 51
    • 65

    Rain Showers Likely

    • 46
    • 63

    Chance Rain Showers

Today 10 Oct Knox

Sunny, windy with Highs in the upper 80s. South Winds 20 to 30 Mph with Gusts up to 45 Mph.

Tonight 10 Oct Knox

Mostly clear and breezy. Lows in the upper 60s. South Winds 15 to 25 Mph with Gusts up to 40 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Steffan Reservoir Temperature Statistics

October Temperature

Yankton, Chan Gurney Municipal Airport (11.2 miles)

  • Lowest 2 October, 2026

    42.1 °F

  • Average October

    61.1 °F

  • Highest 6 October, 2026

    86 °F

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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