Williamstown Weather Forecast

    • 62
    • 82

    Increasing Clouds

    • 62
    • 82

    Rain Showers

    • 47
    • 70

    Rain Showers

    • 44
    • 61

    Sunny

    • 50
    • 71

    Mostly Sunny

    • 45
    • 69

    Slight Chance Thunderstorms

Today 16 Oct Lewis

Mostly sunny. Highs in the lower 80s. Southeast Winds 10 to 15 Mph.

Tonight 16 Oct Lewis

Mostly clear in the Evening, then becoming mostly cloudy. Lows around 60. Southeast Winds 5 to 10 Mph with Gusts up to 25 Mph.

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Williamstown Temperature Statistics

October Temperature

Keokuk Municipal Airport (24.2 miles)

  • Lowest 8 October, 2025

    44.6 °F

  • Average October

    66.8 °F

  • Highest 2 October, 2025

    87.8 °F

Climate (2020–Present)

Keokuk Municipal Airport (24.2 miles)

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  • Average Low 2020–2025

    43.4 °F

  • Average 2020–2025

    53 °F

  • Average High 2020–2025

    62.5 °F
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