Sumner Weather Forecast

    • 51
    • 67

    Increasing Clouds

    • 43
    • 75

    Rain Showers

    • 23
    • 50

    Rain Likely

    • 27
    • 43

    Breezy

    • 41
    • 61

    Partly Sunny

    • 32
    • 65

    Mostly Cloudy

Today 13 Mar Bremer

Sunny. Highs in the upper 60s. Southeast Winds 10 to 15 Mph.

Tonight 13 Mar Bremer

Mostly clear in the Evening, then partly cloudy with a slight chance of Showers after midnight. Not as cool with Lows in the lower 50s. Southeast Winds 10 to 15 Mph with Gusts up to 25 Mph. Chance of rain 20 percent.

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Sumner Temperature Statistics

March Temperature

Oelwein Municipal Airport (12.4 miles)

  • Lowest 2 March, 2025

    10.4 °F

  • Average March

    35.3 °F

  • Highest 10 March, 2025

    69.8 °F

Climate (2020–Present)

Oelwein Municipal Airport (12.4 miles)

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  • Average Low 2020–2025

    38.2 °F

  • Average 2020–2025

    47.9 °F

  • Average High 2020–2025

    57.6 °F
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