Mason City Weather Forecast

    • -13
    • 24

    Mostly Sunny

    • 6
    • 9

    Cold

    • 15
    • 27

    Mostly Cloudy

    • 0
    • 22

    Chance Snow

    • -5
    • 13

    Mostly Cloudy

    • 13
    • 24

    Mostly Cloudy

    • 20
    • 31

    Chance Snow

Today 3 Dec Cerro Gordo

Mostly sunny. Highs in the mid 20s. Temperature falling to around 12 late. Northwest Winds 15 to 20 Mph.

Tonight 3 Dec Cerro Gordo

Mostly clear. Much Colder with Lows around 13 below. Northwest Winds 10 to 15 Mph. Wind chill Values as low as 22 below.

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Mason City Temperature Statistics

December Temperature

Mason City Municipal Airport (6.2 miles)

  • Lowest 1 December, 2025

    12 °F

  • Average December

    14.3 °F

  • Highest 1 December, 2025

    18 °F

Climate (2020–Present)

Mason City Municipal Airport (6.2 miles)

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  • Average Low 2020–2025

    37.2 °F

  • Average 2020–2025

    47.8 °F

  • Average High 2020–2025

    58.4 °F
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