Sumner Weather Forecast

    • -1
    • 14

    Chance Snow

    • 14
    • 24

    Mostly Cloudy

    • 21
    • 38

    Chance Rain

    • 7
    • 26

    Chance Snow

    • -1
    • 18

    Chance Snow

    • -9
    • 8

    Cold

    • -8
    • 2

    Cold

Today 7 Dec Bremer

Sunny. Highs around 14. North Winds 5 to 10 Mph.

Tonight 7 Dec Bremer

Partly cloudy this Evening, then cloudy with a chance of Flurries after midnight. Cold with Lows around 3 below. Temperature rising to around 5 above after midnight. Northeast Winds 5 to 10 Mph, becoming southeast after midnight.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Sumner Temperature Statistics

December Temperature

Oelwein Municipal Airport (12.4 miles)

  • Lowest 4 December, 2025

    -11.2 °F

  • Average December

    15.2 °F

  • Highest 5 December, 2025

    32 °F

Climate (2020–Present)

Oelwein Municipal Airport (12.4 miles)

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  • Average Low 2020–2025

    38.5 °F

  • Average 2020–2025

    48.3 °F

  • Average High 2020–2025

    57.9 °F
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