Mason City Weather Forecast

    • 73
    • 88

    Slight Chance Thunderstorms

    • 69
    • 88

    Chance Thunderstorms

    • 69
    • 88

    Chance Rain Showers

    • 68
    • 87

    Rain Showers Likely

    • 69
    • 86

    Slight Chance Thunderstorms

    • 68
    • 87

    Partly Sunny

Today 30 Aug Cerro Gordo

Partly sunny with a slight chance of Showers and Thunderstorms. Highs in the upper 80s. South Winds 10 to 15 Mph with Gusts up to 25 Mph. Chance of rain 20 percent.

Tonight 30 Aug Cerro Gordo

Mostly cloudy. Humid with Lows in the lower 70s. South Winds 5 to 10 Mph.

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Mason City Temperature Statistics

August Temperature

Mason City Municipal Airport (6.2 miles)

  • Lowest 23 August, 2026

    49.6 °F

  • Average August

    70.3 °F

  • Highest 11 August, 2026

    85.6 °F

Climate (2021–2026)

Mason City Municipal Airport (6.2 miles)

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  • Average Low 2021–2026

    37.2 °F

  • Average 2021–2026

    47.9 °F

  • Average High 2021–2026

    58.6 °F
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