Mason City Weather Forecast

    • 64
    • 77

    Rain Showers Likely

    • 63
    • 81

    Rain Showers

    • 54
    • 78

    Mostly Sunny

    • 57
    • 78

    Mostly Sunny

    • 60
    • 80

    Rain Showers Likely

    • 54
    • 75

    Partly Sunny

    • 54
    • 73

    Rain Showers Likely

Today 7 Sep Cerro Gordo

Partly sunny with a 20 percent chance of Showers. Near steady temperature in the upper 70s. Southeast Winds 10 to 15 Mph with Gusts up to 25 Mph.

Tonight 7 Sep Cerro Gordo

Mostly cloudy. A chance of Showers with a slight chance of Thunderstorms after midnight. Lows in the mid 60s. Southeast Winds 10 to 15 Mph with Gusts up to 25 Mph. Chance of rain 50 percent.

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Mason City Temperature Statistics

September Temperature

Mason City Municipal Airport (6.2 miles)

  • Lowest 1 September, 2026

    62.7 °F

  • Average September

    77.1 °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

    47.9 °F

  • Average High 2021–2026

    58.6 °F
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