Swan Lake Weather Forecast

    • 52
    • 75

    Mostly Sunny

    • 64
    • 82

    Mostly Sunny

    • 52
    • 86

    Partly Sunny

    • 48
    • 70

    Rain Showers Likely

    • 51
    • 62

    Rain Showers

    • 46
    • 68

    Slight Chance Rain Showers

    • 50
    • 67

    Partly Sunny

Today 9 Sep Clark

Sunny. Near steady temperature in the lower 70s. Northwest Winds 10 to 15 Mph with Gusts up to 30 Mph.

Tonight 9 Sep Clark

Mostly clear. Lows in the lower 50s. Light and variable Winds, becoming south around 5 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Swan Lake Temperature Statistics

September Temperature

Watertown, Watertown Municipal Airport (24.9 miles)

  • Lowest 1 September, 2026

    52.6 °F

  • Average September

    75 °F

  • Highest 3 September, 2026

    93.7 °F

Climate (2021–2026)

Watertown, Watertown Municipal Airport (24.9 miles)

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  • Average Low 2021–2026

    35.2 °F

  • Average 2021–2026

    45.5 °F

  • Average High 2021–2026

    56 °F
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