Mason City Weather Forecast

    • 44
    • 62

    Mostly Cloudy

    • 48
    • 64

    Partly Sunny

    • 51
    • 63

    Chance Rain Showers

    • 53
    • 66

    Rain Showers Likely

    • 54
    • 63

    Chance Rain Showers

    • 55
    • 71

    Mostly Cloudy

    • 57
    • 72

    Chance Rain Showers

Today 22 Sep Cerro Gordo

Mostly cloudy with a 50 percent chance of Showers. Highs in the upper 60s.

Tonight 22 Sep Cerro Gordo

Mostly cloudy this Evening, then becoming partly cloudy. Lows in the mid 40s. East Winds around 5 Mph.

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  • Temperature Real-Time

Mason City Temperature Statistics

September Temperature

Mason City Municipal Airport (6.2 miles)

  • Lowest 16 September, 2026

    46.7 °F

  • Average September

    68.7 °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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