Plymouth Weather Forecast

    • 0
    • 37

    Snow Showers

    • 17
    • 26

    Mostly Cloudy

    • 5
    • 32

    Partly Sunny

    • 15
    • 24

    Mostly Cloudy

    • 27
    • 37

    Mostly Cloudy

    • 22
    • 35

    Mostly Cloudy

Today 18 Dec Cerro Gordo

Mostly cloudy. Rain likely with isolated snow Showers this Morning, then scattered snow Showers this afternoon. Snow accumulation around an inch. Windy with Highs in the upper 30s. Temperature falling to around 15 this afternoon. West Winds 15 to 25 Mph, becoming northwest 25 to 30 Mph this afternoon. Gusts up to 45 Mph. Chance of precipitation 70 percent.

Tonight 18 Dec Cerro Gordo

Mostly cloudy with isolated snow Showers in the Evening, then mostly clear after midnight. Windy and much cooler with Lows around zero. Northwest Winds 20 to 30 Mph with Gusts up to 45 Mph. Chance of snow 20 percent.

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Plymouth Temperature Statistics

December Temperature

Mason City Municipal Airport (11.8 miles)

  • Lowest 4 December, 2025

    -11.9 °F

  • Average December

    14.8 °F

  • Highest 16 December, 2025

    41 °F

Climate (2020–Present)

Mason City Municipal Airport (11.8 miles)

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  • Average Low 2020–2025

    37.1 °F

  • Average 2020–2025

    47.7 °F

  • Average High 2020–2025

    58.3 °F
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