Williamstown Weather Forecast

    • 23
    • 45

    Rain

    • 24
    • 30

    Partly Sunny

    • 30
    • 40

    Partly Sunny

    • 36
    • 47

    Chance Rain

    • 19
    • 40

    Chance Snow

    • 21
    • 29

    Mostly Cloudy

Today 10 Jan Rush

Cloudy with a 50 percent chance of rain. Much cooler with Highs in the mid 40s. West Winds 15 to 20 Mph.

Tonight 10 Jan Rush

Partly cloudy through Midnight, then mostly cloudy with a chance of snow Showers toward daybreak. Little or no snow accumulation. Much Colder with Lows in the lower 20s. West Winds 10 to 15 Mph with Gusts up to 30 Mph. Chance of snow 40 percent.

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Williamstown Temperature Statistics

January Temperature

Shelbyville Municipal Airport (19.9 miles)

  • Lowest 2 January, 2026

    19 °F

  • Average January

    35.6 °F

  • Highest 8 January, 2026

    62.1 °F

Climate (2021–Present)

Shelbyville Municipal Airport (19.9 miles)

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  • Average Low 2021–2026

    47 °F

  • Average 2021–2026

    56.9 °F

  • Average High 2021–2026

    66.9 °F
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