Steffan Reservoir Weather Forecast

    • 51
    • 66

    Thunderstorms

    • 51
    • 65

    Thunderstorms

    • 47
    • 63

    Thunderstorms

    • 39
    • 54

    Thunderstorms Likely

    • 46
    • 62

    Mostly Sunny

    • 50
    • 77

    Slight Chance Thunderstorms

Today 25 Apr Knox

Mostly cloudy. A slight chance of Showers this Morning, then a chance of Showers and Thunderstorms this afternoon. Breezy with Highs in the mid 60s. Southeast Winds 15 to 25 Mph with Gusts up to 40 Mph. Chance of rain 50 percent.

Tonight 25 Apr Knox

Showers and Thunderstorms. Breezy with Lows in the lower 50s. Southeast Winds 20 to 25 Mph with Gusts up to 45 Mph. Chance of rain 90 percent.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Steffan Reservoir Temperature Statistics

April Temperature

Yankton, Chan Gurney Municipal Airport (11.2 miles)

  • Lowest 4 April, 2024

    26.9 °F

  • Average April

    49.7 °F

  • Highest 13 April, 2024

    88.6 °F

Climate (2019–Present)

Yankton, Chan Gurney Municipal Airport (11.2 miles)

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  • Average Low 2019–2024

    39.1 °F

  • Average 2019–2024

    49.6 °F

  • Average High 2019–2024

    60.4 °F
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