Sumner Weather Forecast

    • 66
    • 78

    Rain Showers Likely

    • 71
    • 88

    Chance Thunderstorms

    • 64
    • 89

    Rain Showers Likely

    • 58
    • 82

    Chance Thunderstorms

    • 60
    • 82

    Chance Thunderstorms

    • 58
    • 80

    Chance Thunderstorms

Today 8 Jun Bremer

Showers likely with a slight chance of Thunderstorms early this Morning, then Showers likely with a chance of Thunderstorms this afternoon. Highs in the upper 70s. East Winds 5 to 10 Mph. Chance of rain 70 percent.

Tonight 8 Jun Bremer

Partly cloudy. Humid with Lows in the mid 60s. North Winds around 5 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Sumner Temperature Statistics

June Temperature

Oelwein Municipal Airport (12.4 miles)

  • Lowest 2 June, 2026

    53.6 °F

  • Average June

    70.8 °F

  • Highest 4 June, 2026

    86 °F

Climate (2021–Present)

Oelwein Municipal Airport (12.4 miles)

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  • Average Low 2021–2026

    38.7 °F

  • Average 2021–2026

    48.5 °F

  • Average High 2021–2026

    58.2 °F
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