Williamstown Weather Forecast

    • 58
    • 83

    Mostly Sunny

    • 64
    • 89

    Partly Sunny

    • 64
    • 85

    Rain Showers Likely

    • 63
    • 88

    Chance Thunderstorms

    • 64
    • 88

    Chance Thunderstorms

    • 64
    • 89

    Chance Thunderstorms

Today 3 Jun Johnson

Sunny. Highs in the mid 80s. Southeast Winds 5 to 10 Mph.

Tonight 3 Jun Johnson

Partly cloudy. Lows in the mid 50s. Southeast Winds 5 to 10 Mph.

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Williamstown Temperature Statistics

June Temperature

Iowa City Municipal Airport (10.6 miles)

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  • Average June

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Climate (2021–Present)

Iowa City Municipal Airport (10.6 miles)

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  • Average Low 2021–2026

    42.6 °F

  • Average 2021–2026

    53 °F

  • Average High 2021–2026

    63.3 °F
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