Mason City Weather Forecast

    • 58
    • 82

    Mostly Cloudy

    • 55
    • 78

    Chance Rain Showers

    • 56
    • 77

    Chance Thunderstorms

    • 55
    • 82

    Slight Chance Thunderstorms

    • 54
    • 81

    Partly Sunny

    • 56
    • 82

    Slight Chance Thunderstorms

Today 29 May Cerro Gordo

Partly sunny. Highs in the lower 80s. Southeast Winds around 5 Mph.

Tonight 29 May Cerro Gordo

Mostly cloudy. Lows in the upper 50s. East Winds around 5 Mph.

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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

    58.2 °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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