Williamstown Lake Weather Forecast

    • 40
    • 67

    Rain Showers Likely

    • 32
    • 54

    Mostly Sunny

    • 37
    • 62

    Sunny

    • 38
    • 65

    Mostly Sunny

    • 42
    • 68

    Mostly Sunny

    • 43
    • 70

    Mostly Sunny

    • 46
    • 71

    Mostly Sunny

Today 16 Oct Grant

Mostly sunny. Highs in the lower 70s.

Tonight 16 Oct Grant

Mostly cloudy with a chance of Showers this Evening, then partly cloudy with a slight chance of Showers after midnight. Much cooler with Lows in the upper 30s. Northwest Winds 5 to 10 Mph with Gusts up to 20 Mph, becoming north with Gusts up to 20 Mph after midnight. Chance of rain 40 percent.

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  • Temperature Real-Time

Williamstown Lake Temperature Statistics

October Temperature

Cincinnati/Northern Kentucky International Airport (26.7 miles)

  • Lowest 7 October, 2026

    40.6 °F

  • Average October

    66.1 °F

  • Highest 13 October, 2026

    89.1 °F

Climate (2021–2026)

Cincinnati/Northern Kentucky International Airport (26.7 miles)

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  • Average Low 2021–2026

    47.4 °F

  • Average 2021–2026

    56.7 °F

  • Average High 2021–2026

    66.2 °F
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