Sumner Weather Forecast

    • 18
    • 21

    Snow

    • 31
    • 43

    Mostly Cloudy

    • 36
    • 49

    Partly Sunny

    • 39
    • 58

    Mostly Cloudy

    • 38
    • 66

    Partly Sunny

    • 27
    • 51

    Mostly Cloudy

Today 17 Mar Bremer

Mostly sunny early this Morning, then mostly cloudy with a chance of snow this afternoon. Little or no snow accumulation. Highs in the lower 20s. Northwest Winds around 5 Mph, becoming south 10 to 15 Mph this afternoon. Chance of snow 50 percent.

Tonight 17 Mar Bremer

Mostly cloudy. Snow, mainly in the evening. Snow accumulation around an inch. Total snow accumulation 1 to 3 Inches. Not as cool with Lows around 19. South Winds 10 to 15 Mph with Gusts up to 25 Mph. Chance of snow 90 percent.

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Sumner Temperature Statistics

March Temperature

Oelwein Municipal Airport (12.4 miles)

  • Lowest 1 March, 2026

    15.8 °F

  • Average March

    38.4 °F

  • Highest 9 March, 2026

    66.2 °F

Climate (2021–Present)

Oelwein Municipal Airport (12.4 miles)

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  • Average Low 2021–2026

    38.7 °F

  • Average 2021–2026

    48.4 °F

  • Average High 2021–2026

    58.1 °F
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