Williamstown Weather Forecast

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    Chance Rain Showers

Today 22 Sep Rush

Partly cloudy. A chance of Showers late in the afternoon. Highs around 80. Chance of rain 30 percent.

Tonight 22 Sep Rush

Mostly cloudy. Lows in the upper 50s. Northeast Winds 5 to 10 Mph. Gusts up to 20 Mph through the late overnight.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Williamstown Temperature Statistics

September Temperature

Shelbyville Municipal Airport (19.9 miles)

  • Lowest 14 September, 2026

    53.7 °F

  • Average September

    77.5 °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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