Williamstown Lake Weather Forecast

    • 73
    • 93

    Partly Sunny

    • 73
    • 96

    Mostly Sunny

    • 75
    • 97

    Hot

    • 74
    • 98

    Chance Rain Showers

    • 70
    • 93

    Chance Rain Showers

    • 65
    • 88

    Slight Chance Thunderstorms

    • 63
    • 85

    Mostly Sunny

Today 31 Aug Grant

Partly cloudy this Morning, then clearing. Highs in the lower 90s. Southwest Winds around 5 Mph.

Tonight 31 Aug Grant

Mostly clear. Lows in the lower 70s. Southwest Winds around 5 Mph.

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Williamstown Lake Temperature Statistics

August Temperature

Cincinnati/Northern Kentucky International Airport (26.7 miles)

  • Lowest 24 August, 2026

    55.7 °F

  • Average August

    75.7 °F

  • Highest 10 August, 2026

    90.6 °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

    56.6 °F

  • Average High 2021–2026

    66 °F
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