Vienna Weather Forecast

    • 61
    • 83

    Chance Thunderstorms

    • 57
    • 78

    Slight Chance Thunderstorms

    • 59
    • 78

    Chance Rain Showers

    • 62
    • 82

    Slight Chance Thunderstorms

    • 59
    • 82

    Slight Chance Thunderstorms

    • 58
    • 77

    Partly Sunny

    • 61
    • 78

    Slight Chance Thunderstorms

Today 17 Aug Clark

Partly sunny with a 20 percent chance of Thunderstorms. Near steady temperature in the lower 80s. Southwest Winds 10 to 15 Mph with Gusts up to 25 Mph.

Tonight 17 Aug Clark

Partly cloudy this Evening, then becoming mostly cloudy. A 40 percent chance of Thunderstorms. Lows in the lower 60s. Southwest Winds 5 to 10 Mph, becoming south after midnight.

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Vienna Temperature Statistics

August Temperature

Watertown, Watertown Municipal Airport (21.7 miles)

  • Lowest 4 August, 2026

    53.7 °F

  • Average August

    70.2 °F

  • Highest 3 August, 2026

    87.7 °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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