Williamstown Weather Forecast

    • 21
    • 26

    Decreasing Clouds

    • 25
    • 47

    Increasing Clouds

    • 22
    • 36

    Partly Sunny

    • 38
    • 43

    Rain Likely

    • 40
    • 50

    Chance Rain

    • 50
    • 55

    Chance Rain

    • 48
    • 62

    Cloudy

Today 19 Dec Rush

Partly cloudy and much Colder. Near steady temperature in the mid 20s. West Winds 10 to 15 Mph with Gusts up to 30 Mph.

Tonight 19 Dec Rush

Partly cloudy. Cold with Lows in the lower 20s. Temperature steady or slowly rising. South Winds 5 to 10 Mph. Gusts up to 25 Mph toward daybreak.

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Williamstown Temperature Statistics

December Temperature

Shelbyville Municipal Airport (19.9 miles)

  • Lowest 15 December, 2025

    -7.1 °F

  • Average December

    25.5 °F

  • Highest 17 December, 2025

    46.9 °F

Climate (2020–Present)

Shelbyville Municipal Airport (19.9 miles)

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  • Average Low 2020–2025

    47 °F

  • Average 2020–2025

    56.9 °F

  • Average High 2020–2025

    66.9 °F
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