Sumner Weather Forecast

    • 66
    • 82

    Thunderstorms Likely

    • 66
    • 82

    Rain Showers Likely

    • 63
    • 76

    Rain Showers Likely

    • 62
    • 73

    Rain Showers Likely

    • 64
    • 76

    Chance Rain Showers

    • 60
    • 74

    Slight Chance Rain Showers

Today 11 Aug Bremer

Mostly cloudy with a chance of Showers and Thunderstorms in the Morning, then mostly sunny in the afternoon. Humid with Highs in the lower 80s. Southeast Winds 5 to 10 Mph, becoming northwest in the afternoon. Chance of rain 50 percent.

Tonight 11 Aug Bremer

Partly cloudy in the Evening, then mostly cloudy with a slight chance of Showers and Thunderstorms after midnight. Humid with Lows in the upper 60s. East Winds around 5 Mph. Chance of rain 20 percent.

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Sumner Temperature Statistics

August Temperature

Oelwein Municipal Airport (12.4 miles)

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  • Average August

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Climate (2021–2026)

Oelwein Municipal Airport (12.4 miles)

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  • Average Low 2021–2026

    38.4 °F

  • Average 2021–2026

    48.2 °F

  • Average High 2021–2026

    57.9 °F
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