Mason City Weather Forecast

    • 64
    • 81

    Partly Sunny

    • 51
    • 76

    Chance Rain Showers

    • 52
    • 68

    Rain Showers

    • 56
    • 75

    Rain Showers Likely

    • 50
    • 67

    Chance Rain Showers

    • 52
    • 64

    Chance Rain Showers

Today 11 Sep Cerro Gordo

Sunny. Highs in the lower 80s. South Winds 15 to 20 Mph with Gusts up to 30 Mph.

Tonight 11 Sep Cerro Gordo

Partly cloudy. A chance of Showers with a slight chance of Thunderstorms after midnight. Lows in the mid 60s. South Winds 10 to 15 Mph with Gusts up to 25 Mph. Chance of rain 40 percent.

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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

    75.2 °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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