Swan Lake Weather Forecast

    • 48
    • 70

    Mostly Sunny

    • 54
    • 83

    Chance Thunderstorms

    • 61
    • 88

    Mostly Sunny

    • 59
    • 92

    Mostly Sunny

    • 59
    • 86

    Slight Chance Thunderstorms

    • 57
    • 83

    Slight Chance Thunderstorms

    • 54
    • 80

    Partly Sunny

Today 23 May Sibley

Warmer. Mostly sunny. Highs around 70. West Winds 5 to 10 Mph.

Tonight 23 May Sibley

Increasing Clouds. Lows in the upper 40s. Northwest Winds up to 5 Mph shifting to the south after midnight.

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  • Temperature Real-Time

Swan Lake Temperature Statistics

May Temperature

New Ulm Municipal Airport (12.4 miles)

  • Lowest 5 May, 2026

    30.2 °F

  • Average May

    56.2 °F

  • Highest 15 May, 2026

    89.6 °F

Climate (2021–Present)

New Ulm Municipal Airport (12.4 miles)

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  • Average Low 2021–2026

    37.5 °F

  • Average 2021–2026

    47.3 °F

  • Average High 2021–2026

    57 °F
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