Tiffin Weather Forecast

    • 35
    • 54

    Rain

    • 30
    • 42

    Increasing Clouds

    • 18
    • 35

    Chance Snow

    • 24
    • 30

    Mostly Sunny

    • 32
    • 43

    Partly Sunny

    • 30
    • 45

    Mostly Cloudy

    • 20
    • 34

    Mostly Cloudy

Today 8 Jan Johnson

Rain with a slight chance of Thunderstorms. Highs in the mid 50s. Southeast Winds 10 to 15 Mph with Gusts up to 30 Mph. Chance of rain near 100 percent.

Tonight 8 Jan Johnson

A slight chance of Thunderstorms early. Rain this Evening, then a chance of rain after midnight. Lows in the mid 30s. Southeast Winds 10 to 15 Mph with Gusts up to 25 Mph, becoming northwest 15 to 20 Mph with Gusts up to 35 Mph after midnight. Chance of rain near 100 percent.

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Tiffin Temperature Statistics

January Temperature

Iowa City Municipal Airport (7.5 miles)

  • Lowest 1 January, 2026

    15.1 °F

  • Average January

    29.3 °F

  • Highest 5 January, 2026

    48 °F

Climate (2021–Present)

Iowa City Municipal Airport (7.5 miles)

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  • Average Low 2021–2026

    42.5 °F

  • Average 2021–2026

    52.7 °F

  • Average High 2021–2026

    62.8 °F
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