Swan Lake Weather Forecast

    • 58
    • 80

    Chance Thunderstorms

    • 56
    • 65

    Rain Showers

    • 53
    • 64

    Rain Showers

    • 50
    • 66

    Chance Rain Showers

    • 52
    • 71

    Partly Sunny

    • 54
    • 76

    Partly Sunny

    • 51
    • 72

    Mostly Sunny

Today 16 Sep Walworth

Partly sunny. Near steady temperature in the upper 70s. Northwest Winds around 5 Mph.

Tonight 16 Sep Walworth

Partly sunny Early, then becoming mostly cloudy. A slight chance of Thunderstorms this evening. A chance of Thunderstorms after midnight. Lows in the upper 50s. Northwest Winds around 5 Mph, becoming northeast. Chance of rain 50 percent.

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Swan Lake Temperature Statistics

September Temperature

Mobridge, Mobridge Municipal Airport (31.7 miles)

  • Lowest 6 September, 2025

    36 °F

  • Average September

    65.2 °F

  • Highest 12 September, 2025

    90 °F

Climate (2020–Present)

Mobridge, Mobridge Municipal Airport (31.7 miles)

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  • Average Low 2020–2025

    36 °F

  • Average 2020–2025

    47.8 °F

  • Average High 2020–2025

    60 °F
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