Mann Weather Forecast

    • 60
    • 85

    Decreasing Clouds

    • 56
    • 76

    Rain Showers Likely

    • 67
    • 81

    Rain Showers Likely

    • 61
    • 79

    Rain Showers

    • 60
    • 73

    Rain Showers Likely

    • 57
    • 77

    Chance Thunderstorms

Today 12 Sep Johnson

Mostly sunny. Humid with Highs in the mid 80s. Southwest Winds 5 to 10 Mph, becoming northwest in the afternoon.

Tonight 12 Sep Johnson

Mostly clear in the Evening, then becoming partly cloudy. Less humid with Lows in the upper 50s. North Winds 5 to 10 Mph.

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Mann Temperature Statistics

September Temperature

Iowa City Municipal Airport (1.9 miles)

  • Lowest 7 September, 2026

    66.7 °F

  • Average September

    80.8 °F

  • Highest 1 September, 2026

    95.6 °F

Climate (2021–2026)

Iowa City Municipal Airport (1.9 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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