Mason City Municipal Airport Weather Forecast

    • 66
    • 86

    Increasing Clouds

    • 63
    • 81

    Chance Rain Showers

    • 66
    • 81

    Chance Rain Showers

    • 65
    • 86

    Chance Thunderstorms

    • 58
    • 83

    Slight Chance Thunderstorms

    • 57
    • 78

    Partly Sunny

Today 5 Sep Cerro Gordo

Patchy fog in the morning. Mostly sunny. Humid with Highs in the upper 80s. East Winds 5 to 10 Mph.

Tonight 5 Sep Cerro Gordo

Partly cloudy in the Evening, then mostly cloudy with a slight chance of Showers and Thunderstorms after midnight. Humid with Lows in the mid 60s. East Winds 5 to 10 Mph. Chance of rain 20 percent.

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Mason City Municipal Airport Temperature Statistics

September Temperature

Mason City Municipal Airport (0 miles)

  • Lowest 1 September, 2026

    62.7 °F

  • Average September

    74.8 °F

  • Highest 1 September, 2026

    87.7 °F

Climate (2021–2026)

Mason City Municipal Airport (0 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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