Williamstown Weather Forecast

    • 72
    • 88

    Thunderstorms Likely

    • 67
    • 88

    Rain Showers Likely

    • 63
    • 83

    Mostly Sunny

    • 70
    • 85

    Chance Thunderstorms

    • 65
    • 88

    Thunderstorms Likely

    • 59
    • 78

    Mostly Sunny

    • 60
    • 78

    Mostly Sunny

Today 17 Jul Rush

Partly cloudy. A chance of Showers and Thunderstorms Early, then Showers with Thunderstorms likely late. Highs in the upper 80s. Southwest Winds around 5 Mph. Chance of rain 80 percent.

Tonight 17 Jul Rush

Partly cloudy. A chance of Showers and Thunderstorms through the late Overnight, then a slight chance of Showers and Thunderstorms toward daybreak. Lows in the lower 70s. Southwest Winds around 5 Mph. Chance of rain 40 percent.

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Williamstown Temperature Statistics

July Temperature

Shelbyville Municipal Airport (19.9 miles)

  • Lowest 13 July, 2026

    64 °F

  • Average July

    78.8 °F

  • Highest 3 July, 2026

    94.6 °F

Climate (2021–2026)

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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