Mason City Weather Forecast

    • 54
    • 83

    Mostly Sunny

    • 57
    • 77

    Sunny

    • 62
    • 78

    Chance Rain Showers

    • 52
    • 74

    Chance Thunderstorms

    • 59
    • 70

    Rain Showers

    • 55
    • 77

    Rain Showers Likely

    • 52
    • 68

    Chance Rain Showers

Today 9 Sep Cerro Gordo

Sunny. Near steady temperature in the upper 70s. Northwest Winds 5 to 10 Mph.

Tonight 9 Sep Cerro Gordo

Partly cloudy. Lows in the mid 50s. Northwest Winds around 5 Mph.

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  • Temperature Real-Time

Mason City Temperature Statistics

September Temperature

Mason City Municipal Airport (6.2 miles)

  • Lowest 1 September, 2026

    62.7 °F

  • Average September

    75.6 °F

  • Highest 4 September, 2026

    90.6 °F

Climate (2021–2026)

Mason City Municipal Airport (6.2 miles)

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  • Average Low 2021–2026

    37.3 °F

  • Average 2021–2026

    48 °F

  • Average High 2021–2026

    58.6 °F
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