Mason City Weather Forecast

    • 58
    • 72

    Rain Showers Likely

    • 62
    • 68

    Rain Showers

    • 56
    • 71

    Chance Rain Showers

    • 52
    • 63

    Rain Showers Likely

    • 48
    • 59

    Chance Rain Showers

    • 46
    • 61

    Mostly Cloudy

Today 17 Sep Cerro Gordo

Cloudy. Areas of fog early this Morning, then patchy fog this afternoon. Highs in the lower 70s. Northeast Winds around 5 Mph.

Tonight 17 Sep Cerro Gordo

Mostly cloudy. A chance of Showers after midnight. Lows in the upper 50s. East Winds 5 to 10 Mph. Chance of rain 50 percent.

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  • Temperature Real-Time

Mason City Temperature Statistics

September Temperature

Mason City Municipal Airport (6.2 miles)

  • Lowest 13 September, 2026

    47.6 °F

  • Average September

    70.2 °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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