Sumner Weather Forecast

    • 25
    • 37

    Mostly Sunny

    • 20
    • 45

    Partly Sunny

    • 7
    • 25

    Chance Snow

    • 14
    • 26

    Chance Snow

    • 22
    • 35

    Chance Snow

    • 25
    • 37

    Mostly Cloudy

    • 32
    • 41

    Mostly Cloudy

Today 26 Feb Bremer

Mostly sunny. Near steady temperature in the mid 30s. Southwest Winds around 10 Mph with Gusts up to 20 Mph.

Tonight 26 Feb Bremer

Mostly clear. Lows in the mid 20s. Southwest Winds 5 to 10 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Sumner Temperature Statistics

February Temperature

Oelwein Municipal Airport (12.4 miles)

  • Lowest 4 February, 2026

    1.4 °F

  • Average February

    28.4 °F

  • Highest 16 February, 2026

    62.6 °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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