Steffan Reservoir Weather Forecast

    • 38
    • 60

    Increasing Clouds

    • 33
    • 60

    Partly Sunny

    • 39
    • 65

    Partly Sunny

    • 43
    • 62

    Partly Sunny

    • 38
    • 67

    Chance Rain

    • 28
    • 54

    Partly Sunny

Today 13 Feb Knox

Sunny. Highs in the lower 60s. Southwest Winds 5 to 10 Mph.

Tonight 13 Feb Knox

Mostly cloudy. Not as cool with Lows in the upper 30s. South Winds 5 to 10 Mph.

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  • Temperature Real-Time

Steffan Reservoir Temperature Statistics

February Temperature

Yankton, Chan Gurney Municipal Airport (11.2 miles)

  • Lowest 1 February, 2026

    16 °F

  • Average February

    35.3 °F

  • Highest 5 February, 2026

    61 °F

Climate (2021–Present)

Yankton, Chan Gurney Municipal Airport (11.2 miles)

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  • Average Low 2021–2026

    39.2 °F

  • Average 2021–2026

    50.3 °F

  • Average High 2021–2026

    61.5 °F
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