Williamstown Lake Weather Forecast

    • 71
    • 87

    Thunderstorms Likely

    • 71
    • 84

    Rain Showers

    • 64
    • 85

    Chance Thunderstorms

    • 66
    • 87

    Mostly Sunny

    • 66
    • 87

    Mostly Sunny

    • 68
    • 90

    Mostly Sunny

Today 29 Jun Grant

Partly cloudy. A chance of Showers with a slight chance of Thunderstorms this Morning, then Showers and Thunderstorms likely this afternoon. Highs in the upper 80s. Light and variable Winds, becoming southwest around 5 Mph this late morning and afternoon. Chance of rain 60 percent.

Tonight 29 Jun Grant

Partly cloudy with a chance of Showers and Thunderstorms. Muggy. Lows in the lower 70s. South Winds around 5 Mph. Chance of rain 40 percent.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Williamstown Lake Temperature Statistics

June Temperature

Cincinnati/Northern Kentucky International Airport (26.7 miles)

  • Lowest 1 June, 2025

    43.6 °F

  • Average June

    74.8 °F

  • Highest 24 June, 2025

    93.7 °F

Climate (2020–Present)

Cincinnati/Northern Kentucky International Airport (26.7 miles)

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  • Average Low 2020–2025

    47.4 °F

  • Average 2020–2025

    56.4 °F

  • Average High 2020–2025

    65.7 °F
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