Sumner Weather Forecast

    • 46
    • 61

    Mostly Cloudy

    • 53
    • 68

    Mostly Cloudy

    • 56
    • 72

    Rain Showers Likely

    • 47
    • 68

    Chance Rain Showers

    • 52
    • 66

    Rain Showers Likely

    • 53
    • 67

    Chance Rain Showers

Today 26 Oct Bremer

Mostly cloudy. Highs in the lower 60s. East Winds 10 to 15 Mph.

Tonight 26 Oct Bremer

Mostly cloudy. Lows in the upper 40s. East Winds 10 to 15 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Sumner Temperature Statistics

October Temperature

Oelwein Municipal Airport (12.4 miles)

  • Lowest 17 October, 2026

    30.2 °F

  • Average October

    58.3 °F

  • Highest 12 October, 2026

    87.8 °F

Climate (2021–2026)

Oelwein Municipal Airport (12.4 miles)

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  • Average Low 2021–2026

    38.5 °F

  • Average 2021–2026

    48.2 °F

  • Average High 2021–2026

    57.9 °F
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