Vienna Weather Forecast

    • 56
    • 70

    Rain Showers Likely

    • 52
    • 72

    Mostly Cloudy

    • 46
    • 62

    Partly Sunny

    • 49
    • 61

    Partly Sunny

    • 47
    • 63

    Partly Sunny

    • 46
    • 60

    Mostly Sunny

Today 29 Sep Clark

Mostly cloudy. Patchy fog this morning. Showers with a chance of Thunderstorms this Morning, then a chance of Showers this afternoon. Highs around 70. South Winds 10 to 15 Mph, becoming west this afternoon. Gusts up to 30 Mph. Chance of rain 80 percent.

Tonight 29 Sep Clark

Partly cloudy. Lows in the mid 50s. West Winds around 5 Mph, becoming south after midnight.

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Vienna Temperature Statistics

September Temperature

Watertown, Watertown Municipal Airport (21.7 miles)

  • Lowest 16 September, 2026

    44.7 °F

  • Average September

    65.6 °F

  • Highest 3 September, 2026

    93.7 °F

Climate (2021–2026)

Watertown, Watertown Municipal Airport (21.7 miles)

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  • Average Low 2021–2026

    35.2 °F

  • Average 2021–2026

    45.5 °F

  • Average High 2021–2026

    55.9 °F
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