Williamstown Weather Forecast

    • 57
    • 68

    Rain Showers

    • 63
    • 79

    Rain Showers Likely

    • 66
    • 84

    Mostly Sunny

    • 69
    • 87

    Chance Thunderstorms

    • 65
    • 85

    Rain Showers Likely

    • 55
    • 76

    Chance Rain Showers

Today 15 May Rush

Mostly cloudy with scattered Showers through early Afternoon, then partly cloudy late this afternoon. Highs in the upper 60s. South Winds 5 to 10 Mph with Gusts up to 20 Mph. Chance of rain 50 percent.

Tonight 15 May Rush

Partly cloudy. Showers likely with a chance of Thunderstorms toward daybreak. Not as cool with Lows in the upper 50s. South Winds 5 to 10 Mph with Gusts up to 25 Mph. Chance of rain 70 percent.

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Williamstown Temperature Statistics

May Temperature

Shelbyville Municipal Airport (19.9 miles)

  • Lowest 3 May, 2026

    35.7 °F

  • Average May

    55.6 °F

  • Highest 12 May, 2026

    77 °F

Climate (2021–Present)

Shelbyville Municipal Airport (19.9 miles)

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  • Average Low 2021–2026

    46.9 °F

  • Average 2021–2026

    56.9 °F

  • Average High 2021–2026

    67.1 °F
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