Mason City Municipal Airport Weather Forecast

    • 54
    • 72

    Chance Rain Showers

    • 47
    • 65

    Chance Rain Showers

    • 43
    • 61

    Chance Rain Showers

    • 40
    • 61

    Partly Sunny

    • 44
    • 64

    Partly Sunny

    • 47
    • 65

    Mostly Cloudy

Today 19 Sep Cerro Gordo

Patchy fog this morning. Mostly cloudy with a chance of Showers. A chance of Thunderstorms, mainly this morning. Some Thunderstorms may produce heavy rainfall this morning. Some Thunderstorms may produce heavy rainfall this afternoon. Highs in the lower 70s. East Winds around 5 Mph, becoming north this afternoon. Chance of rain 50 percent.

Tonight 19 Sep Cerro Gordo

Cloudy with a slight chance of Showers. A slight chance of drizzle after midnight. Lows in the mid 50s. North Winds around 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 16 September, 2026

    46 °F

  • Average September

    69.7 °F

  • Highest 4 September, 2026

    90.6 °F

Climate (2021–2026)

Mason City Municipal Airport (0 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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