Horn Weather Forecast

    • 35
    • 50

    Increasing Clouds

    • 38
    • 57

    Partly Sunny

    • 42
    • 70

    Partly Sunny

    • 47
    • 77

    Partly Sunny

    • 27
    • 60

    Partly Sunny

    • 30
    • 47

    Mostly Cloudy

Today 18 Mar Johnson

Mostly sunny. Not as cool with Highs in the mid 40s. Southwest Winds around 5 Mph.

Tonight 18 Mar Johnson

Mostly cloudy with a 40 percent chance of snow. Little or no snow accumulation. Not as cool. Near steady temperature in the mid 20s. Temperature rising into the mid 20s through Sunrise. South Winds 10 to 15 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Horn Temperature Statistics

March Temperature

Iowa City Municipal Airport (1.2 miles)

  • Lowest 1 March, 2026

    19.9 °F

  • Average March

    43 °F

  • Highest 9 March, 2026

    75.9 °F

Climate (2021–Present)

Iowa City Municipal Airport (1.2 miles)

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  • Average Low 2021–2026

    42.5 °F

  • Average 2021–2026

    52.8 °F

  • Average High 2021–2026

    63.1 °F
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