Lake Yankton Weather Forecast

    • 55
    • 77

    Chance Rain Showers

    • 58
    • 78

    Chance Rain Showers

    • 61
    • 82

    Chance Rain Showers

    • 58
    • 80

    Slight Chance Thunderstorms

    • 56
    • 75

    Partly Sunny

    • 59
    • 76

    Partly Sunny

Today 18 Aug Lyon

Mostly sunny. A chance of Showers with a slight chance of Thunderstorms in the morning. Highs in the upper 70s. Northwest Winds 5 to 10 Mph. Chance of rain 40 percent.

Tonight 18 Aug Lyon

Mostly cloudy with a chance of Showers with a slight chance of Thunderstorms. Near steady temperature in the mid 60s. Southwest Winds 5 to 10 Mph. Chance of rain 50 percent.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Lake Yankton Temperature Statistics

August Temperature

Tracy, Tracy Municipal Airport (12.4 miles)

  • Lowest 5 August, 2026

    50 °F

  • Average August

    70.6 °F

  • Highest 3 August, 2026

    84.2 °F

Climate (2021–2026)

Tracy, Tracy Municipal Airport (12.4 miles)

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  • Average Low 2021–2026

    38 °F

  • Average 2021–2026

    47.4 °F

  • Average High 2021–2026

    57.1 °F
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