Steffan Reservoir Weather Forecast

    • -6
    • 15

    Decreasing Clouds

    • -6
    • 8

    Cold

    • -10
    • 3

    Cold

    • 11
    • 18

    Partly Sunny

    • 16
    • 34

    Mostly Cloudy

    • 12
    • 28

    Mostly Cloudy

Today 18 Jan Knox

Partly sunny in the Morning, then becoming mostly cloudy. Much cooler with Highs around 15. Northwest Winds 15 to 20 Mph with Gusts up to 30 Mph. Wind chill Values as low as 14 below.

Tonight 18 Jan Knox

Partly cloudy in the Evening, then becoming mostly cloudy. Colder with Lows around 5 below. Northwest Winds 15 to 20 Mph with Gusts up to 30 Mph. Wind chill Values as low as 27 below.

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  • Temperature Real-Time

Steffan Reservoir Temperature Statistics

January Temperature

Yankton, Chan Gurney Municipal Airport (11.2 miles)

  • Lowest 14 January, 2025

    -9.9 °F

  • Average January

    17.8 °F

  • Highest 15 January, 2025

    42.1 °F

Climate (2020–Present)

Yankton, Chan Gurney Municipal Airport (11.2 miles)

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  • Average Low 2020–2025

    39.2 °F

  • Average 2020–2025

    50 °F

  • Average High 2020–2025

    61.1 °F
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