Williamstown Weather Forecast

    • 60
    • 77

    Rain Showers

    • 54
    • 79

    Partly Sunny

    • 57
    • 76

    Partly Sunny

    • 52
    • 77

    Mostly Sunny

    • 54
    • 73

    Partly Sunny

    • 54
    • 75

    Mostly Sunny

Today 27 May Rush

Numerous Thunderstorms. Numerous Showers. Highs in the upper 70s. South Winds around 5 Mph, becoming northeast late this afternoon. Chance of rain 70 percent.

Tonight 27 May Rush

Mostly clear through the late Overnight, then becoming partly cloudy. Lows in the upper 50s. Northeast Winds around 5 Mph.

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Williamstown Temperature Statistics

May Temperature

Shelbyville Municipal Airport (19.9 miles)

  • Lowest 3 May, 2026

    35.7 °F

  • Average May

    60.4 °F

  • Highest 18 May, 2026

    86.6 °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 °F
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