Sumner Weather Forecast

    • 5
    • 12

    Increasing Clouds

    • -2
    • 10

    Cold

    • -4
    • 12

    Partly Sunny

    • -6
    • 9

    Cold

    • -3
    • 10

    Cold

    • 9
    • 18

    Mostly Cloudy

Today 26 Jan Bremer

Sunny. Highs around 13. Southwest Winds around 10 Mph, increasing to 15 to 20 Mph with Gusts up to 30 Mph this afternoon. Wind chill Values as low as 23 below.

Tonight 26 Jan Bremer

Mostly cloudy in the Evening, then becoming partly cloudy. Not as cool with Lows around 5 above. Southwest Winds 15 to 20 Mph, becoming northwest after midnight.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Sumner Temperature Statistics

January Temperature

Oelwein Municipal Airport (12.4 miles)

  • Lowest 23 January, 2026

    -18.4 °F

  • Average January

    19.4 °F

  • Highest 12 January, 2026

    46.4 °F

Climate (2021–Present)

Oelwein Municipal Airport (12.4 miles)

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  • Average Low 2021–2026

    38.5 °F

  • Average 2021–2026

    48.2 °F

  • Average High 2021–2026

    57.9 °F
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