Sumner Weather Forecast

    • -14
    • 4

    Chance Flurries

    • -7
    • 2

    Cold

    • 12
    • 26

    Mostly Cloudy

    • 21
    • 35

    Mostly Cloudy

    • 28
    • 38

    Chance Rain

    • 5
    • 34

    Partly Sunny

Today 13 Dec Bremer

Cloudy with a slight chance of snow late this Morning, then partly sunny with a chance of Flurries this afternoon. Cooler. Near steady temperature around 3 above. Northwest Winds 10 to 15 Mph. Chance of snow 20 percent. Wind chill Values as low as 19 below.

Tonight 13 Dec Bremer

Partly cloudy. Cold with Lows around 13 below. Northwest Winds 10 to 15 Mph. Wind chill Values as low as 31 below.

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Sumner Temperature Statistics

December Temperature

Oelwein Municipal Airport (12.4 miles)

  • Lowest 4 December, 2025

    -11.2 °F

  • Average December

    17.4 °F

  • Highest 9 December, 2025

    39.2 °F

Climate (2020–Present)

Oelwein Municipal Airport (12.4 miles)

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  • Average Low 2020–2025

    38.5 °F

  • Average 2020–2025

    48.2 °F

  • Average High 2020–2025

    57.9 °F
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