Mason City Weather Forecast

    • 56
    • 69

    Chance Thunderstorms

    • 53
    • 80

    Slight Chance Thunderstorms

    • 53
    • 81

    Mostly Sunny

    • 57
    • 82

    Chance Rain Showers

    • 59
    • 82

    Rain Showers Likely

    • 60
    • 83

    Chance Thunderstorms

Today 31 May Cerro Gordo

Mostly cloudy with a chance of Showers with a slight chance of Thunderstorms. Highs in the lower 70s. Southeast Winds 10 to 15 Mph. Chance of rain 50 percent.

Tonight 31 May Cerro Gordo

Mostly cloudy with a slight chance of Showers and Thunderstorms. Lows in the mid 50s. East Winds 5 to 10 Mph. Chance of rain 20 percent.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Mason City Temperature Statistics

May Temperature

Mason City Municipal Airport (6.2 miles)

  • Lowest 2 May, 2026

    29.6 °F

  • Average May

    59.2 °F

  • Highest 15 May, 2026

    90.6 °F

Climate (2021–Present)

Mason City Municipal Airport (6.2 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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