Williamstown Weather Forecast

    • 63
    • 78

    Rain Showers

    • 65
    • 80

    Partly Sunny

    • 65
    • 83

    Slight Chance Thunderstorms

    • 64
    • 84

    Chance Rain Showers

    • 67
    • 86

    Chance Rain Showers

    • 62
    • 87

    Chance Rain Showers

Today 10 Sep Rush

Scattered Showers this Morning, then numerous Showers and scattered Thunderstorms. Not as warm with Highs in the upper 70s. North Winds around 5 Mph, becoming west through early Afternoon, then becoming north around 5 Mph late this afternoon. Chance of rain 70 percent.

Tonight 10 Sep Rush

Partly cloudy. Lows in the lower 60s. Northeast Winds around 5 Mph.

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Williamstown Temperature Statistics

September Temperature

Shelbyville Municipal Airport (19.9 miles)

  • Lowest 7 September, 2026

    59.6 °F

  • Average September

    79.1 °F

  • Highest 4 September, 2026

    96.7 °F

Climate (2021–2026)

Shelbyville Municipal Airport (19.9 miles)

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  • Average Low 2021–2026

    46.8 °F

  • Average 2021–2026

    56.9 °F

  • Average High 2021–2026

    67 °F
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