Mason City Weather Forecast

    • 63
    • 67

    Rain Showers

    • 55
    • 70

    Rain Showers Likely

    • 49
    • 63

    Chance Rain Showers

    • 45
    • 58

    Chance Rain Showers

    • 42
    • 60

    Partly Sunny

    • 46
    • 62

    Partly Sunny

Today 18 Sep Cerro Gordo

Mostly cloudy. A chance of Showers and Thunderstorms this afternoon. Near steady temperature in the mid 60s. Southeast Winds 10 to 15 Mph with Gusts up to 30 Mph. Chance of rain 40 percent.

Tonight 18 Sep Cerro Gordo

Showers. Thunderstorms Likely, mainly in the evening. Humid. Near steady temperature in the mid 60s. Southeast Winds 10 to 15 Mph. Chance of rain 80 percent.

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Mason City Temperature Statistics

September Temperature

Mason City Municipal Airport (6.2 miles)

  • Lowest 16 September, 2026

    46 °F

  • Average September

    69.7 °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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