Horn Weather Forecast

    • 58
    • 81

    Rain Showers

    • 54
    • 76

    Mostly Sunny

    • 59
    • 80

    Mostly Sunny

    • 61
    • 81

    Mostly Cloudy

    • 59
    • 77

    Chance Thunderstorms

    • 57
    • 79

    Partly Sunny

Today 17 Jun Johnson

A slight chance of Showers and Thunderstorms after Midnight, then Showers with Thunderstorms likely this morning. A chance of Showers and Thunderstorms this afternoon. Locally heavy rainfall possible this morning. Highs around 80. Southeast Winds 10 to 15 Mph with Gusts up to 25 Mph, becoming southwest 15 to 20 Mph with Gusts up to 30 Mph this afternoon. Chance of rain near 100 percent.

Tonight 17 Jun Johnson

Mostly clear. Lows in the upper 50s. West Winds 10 to 15 Mph. Gusts up to 30 Mph in the evening.

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Horn Temperature Statistics

June Temperature

Iowa City Municipal Airport (1.2 miles)

  • Lowest 2 June, 2026

    52 °F

  • Average June

    74 °F

  • Highest 6 June, 2026

    90 °F

Climate (2021–2026)

Iowa City Municipal Airport (1.2 miles)

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  • Average Low 2021–2026

    42.6 °F

  • Average 2021–2026

    52.9 °F

  • Average High 2021–2026

    63.3 °F
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