Mason City Weather Forecast

    • 58
    • 81

    Rain Showers Likely

    • 48
    • 78

    Rain Showers

    • 39
    • 60

    Mostly Cloudy

    • 41
    • 61

    Partly Sunny

    • 45
    • 64

    Partly Sunny

    • 49
    • 69

    Partly Sunny

Today 17 May Cerro Gordo

Mostly cloudy. A chance of Showers and Thunderstorms, mainly this morning. Windy with Highs in the lower 80s. Southeast Winds 15 to 20 Mph, increasing to 20 to 30 Mph with Gusts up to 40 Mph this afternoon. Chance of rain 50 percent.

Tonight 17 May Cerro Gordo

Mostly cloudy with a chance of Thunderstorms. A chance of Showers in the Evening, then Showers likely after midnight. Windy with Lows in the upper 50s. South Winds 20 to 30 Mph with Gusts up to 40 Mph, Diminishing to 15 to 20 Mph with Gusts up to 30 Mph after midnight. Chance of rain 70 percent.

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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

    54 °F

  • Highest 15 May, 2026

    88 °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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