Mason City Weather Forecast

    • 48
    • 73

    Becoming Sunny

    • 55
    • 81

    Chance Thunderstorms

    • 59
    • 86

    Mostly Sunny

    • 59
    • 88

    Partly Sunny

    • 58
    • 83

    Chance Thunderstorms

    • 56
    • 81

    Slight Chance Rain Showers

Today 23 May Cerro Gordo

Mostly cloudy with a slight chance of Showers this Morning, then partly sunny this afternoon. Highs in the lower 70s. Southwest Winds 5 to 10 Mph, becoming west this afternoon. Chance of rain 20 percent.

Tonight 23 May Cerro Gordo

Partly cloudy in the Evening, then clearing. Lows in the upper 40s. Northwest Winds 5 to 10 Mph, becoming southwest after midnight.

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Mason City Temperature Statistics

May Temperature

Mason City Municipal Airport (6.2 miles)

  • Lowest 2 May, 2026

    29.6 °F

  • Average May

    55.4 °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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