Mason City Weather Forecast

    • 56
    • 65

    Slight Chance Rain Showers

    • 54
    • 60

    Rain Showers

    • 55
    • 65

    Mostly Cloudy

    • 58
    • 68

    Mostly Cloudy

    • 56
    • 65

    Rain Showers

    • 53
    • 63

    Chance Rain Showers

Today 25 Sep Cerro Gordo

Cloudy. Highs in the mid 60s. Southeast Winds around 5 Mph, increasing to around 10 Mph in the afternoon.

Tonight 25 Sep Cerro Gordo

Mostly cloudy. A slight chance of Showers after midnight. Lows in the mid 50s. Southeast Winds 5 to 10 Mph. Chance of rain 20 percent.

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  • Temperature Forecast NOAA

  • 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

    67.6 °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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