Tiffin Weather Forecast

    • 37
    • 79

    Severe Tstms

    • 32
    • 51

    Mostly Sunny

    • 31
    • 54

    Mostly Sunny

    • 49
    • 61

    Partly Sunny

    • 49
    • 76

    Mostly Sunny

    • 57
    • 78

    Partly Sunny

Today 17 Apr Johnson

Showers and Thunderstorms. Some Thunderstorms may be severe with damaging Winds, large Hail, heavy Rainfall, and Tornadoes. Breezy with Highs around 80. South Winds 15 to 25 Mph with Gusts up to 40 Mph. Chance of rain 90 percent.

Tonight 17 Apr Johnson

Mostly cloudy. Numerous Showers and scattered Thunderstorms in the Evening, then isolated Showers after midnight. Some Thunderstorms may be severe with damaging Winds, large Hail, heavy Rainfall, and Tornadoes. Much cooler. Less humid with Lows in the upper 30s. Northwest Winds 15 to 20 Mph with Gusts up to 40 Mph. Chance of rain 70 percent.

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Tiffin Temperature Statistics

April Temperature

Iowa City Municipal Airport (7.5 miles)

  • Lowest 7 April, 2026

    34 °F

  • Average April

    52.2 °F

  • Highest 13 April, 2026

    80.1 °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

    52.9 °F

  • Average High 2021–2026

    63.2 °F
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