Lake Yankton Weather Forecast

    • 71
    • 81

    Slight Chance Thunderstorms

    • 71
    • 88

    Chance Thunderstorms

    • 67
    • 86

    Rain Showers Likely

    • 64
    • 81

    Slight Chance Rain Showers

    • 67
    • 84

    Slight Chance Thunderstorms

    • 69
    • 87

    Slight Chance Thunderstorms

    • 68
    • 87

    Chance Thunderstorms

Today 21 Jul Lyon

Mostly cloudy with a chance of Showers and Thunderstorms. Highs in the lower 80s. Southeast Winds 10 to 15 Mph. Chance of rain 40 percent.

Tonight 21 Jul Lyon

Mostly cloudy. A slight chance of Showers and Thunderstorms. Lows in the lower 70s. Southeast Winds 10 to 15 Mph. Chance of rain 20 percent.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Lake Yankton Temperature Statistics

July Temperature

Tracy, Tracy Municipal Airport (12.4 miles)

  • Lowest 17 July, 2025

    55.4 °F

  • Average July

    72.6 °F

  • Highest 3 July, 2025

    91.4 °F

Climate (2020–Present)

Tracy, Tracy Municipal Airport (12.4 miles)

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  • Average Low 2020–2025

    38.2 °F

  • Average 2020–2025

    47.5 °F

  • Average High 2020–2025

    57 °F
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