Mason City Weather Forecast

    • 55
    • 60

    Rain Showers

    • 55
    • 65

    Chance Rain Showers

    • 56
    • 69

    Mostly Cloudy

    • 57
    • 66

    Rain Showers Likely

    • 54
    • 67

    Chance Rain Showers

    • 50
    • 67

    Chance Rain Showers

Today 26 Sep Cerro Gordo

Showers. Highs around 60. Southeast Winds 10 to 15 Mph with Gusts up to 25 Mph. Chance of rain 90 percent.

Tonight 26 Sep Cerro Gordo

Cloudy with a slight chance of Thunderstorms. A chance of Showers in the Evening, then Showers likely after midnight. Near steady temperature in the upper 50s. Southeast Winds 5 to 10 Mph. Chance of rain 70 percent.

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Mason City Temperature Statistics

September Temperature

Mason City Municipal Airport (6.2 miles)

  • Lowest 23 September, 2026

    43 °F

  • Average September

    67.3 °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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