Sumner Weather Forecast

    • 66
    • 83

    Increasing Clouds

    • 61
    • 84

    Mostly Sunny

    • 53
    • 73

    Mostly Sunny

    • 51
    • 67

    Chance Rain Showers

    • 46
    • 63

    Chance Rain Showers

    • 36
    • 56

    Breezy

Today 11 Oct Bremer

Sunny. Highs in the lower 80s. South Winds around 15 Mph with Gusts up to 25 Mph.

Tonight 11 Oct Bremer

Partly cloudy in the Evening, then becoming mostly cloudy. Lows in the mid 60s. South 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 2 October, 2026

    42.8 °F

  • Average October

    58.8 °F

  • Highest 6 October, 2026

    78.8 °F

Climate (2021–2026)

Oelwein Municipal Airport (12.4 miles)

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  • Average Low 2021–2026

    38.4 °F

  • Average 2021–2026

    48.1 °F

  • Average High 2021–2026

    57.8 °F
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