Sumner Weather Forecast

    • 29
    • 43

    Areas Fog

    • 37
    • 49

    Chance Rain Showers

    • 41
    • 54

    Rain Showers

    • 37
    • 64

    Rain Showers

    • 35
    • 50

    Partly Sunny

    • 38
    • 60

    Partly Sunny

    • 44
    • 64

    Partly Sunny

Today 3 Mar Bremer

Partly sunny. Highs in the mid 40s. East Winds around 5 Mph.

Tonight 3 Mar Bremer

Mostly cloudy. Areas of fog this Evening, then Areas of freezing fog after midnight. Lows in the upper 20s. Northeast Winds around 5 Mph.

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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

    23.9 °F

  • Highest 1 March, 2026

    32 °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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