Sumner Weather Forecast

    • 33
    • 41

    Breezy

    • 9
    • 42

    Blizzard

    • -2
    • 15

    Blowing Snow

    • 16
    • 23

    Mostly Cloudy

    • 30
    • 42

    Partly Sunny

    • 31
    • 50

    Partly Sunny

Today 14 Mar Bremer

Mostly cloudy. A slight chance of snow this morning. Highs in the lower 40s. East Winds 5 to 10 Mph, increasing to southeast 15 to 20 Mph this afternoon. Chance of snow 20 percent.

Tonight 14 Mar Bremer

Cloudy. A slight chance of rain in the Evening, then rain likely with a slight chance of Thunderstorms after midnight. Breezy with Lows in the mid 30s. Southeast Winds 15 to 25 Mph. Chance of rain 70 percent.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Sumner Temperature Statistics

March Temperature

Oelwein Municipal Airport (12.4 miles)

  • Lowest 1 March, 2026

    15.8 °F

  • Average March

    40 °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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