Sumner Weather Forecast

    • 56
    • 73

    Chance Thunderstorms

    • 63
    • 78

    Rain Showers

    • 64
    • 80

    Chance Thunderstorms

    • 58
    • 84

    Rain Showers Likely

    • 56
    • 78

    Chance Rain Showers

    • 54
    • 70

    Slight Chance Thunderstorms

Today 1 Jun Bremer

Partly sunny with isolated Showers and Thunderstorms. Near steady temperature in the lower 70s. East Winds around 5 Mph. Chance of rain 20 percent.

Tonight 1 Jun Bremer

Mostly cloudy with a slight chance of Showers and Thunderstorms this Evening, then partly cloudy after midnight. Areas of fog after midnight. Lows in the upper 50s. Light and variable Winds, becoming east around 5 Mph. Chance of rain 20 percent.

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  • Temperature Forecast NOAA

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Sumner Temperature Statistics

June Temperature

Oelwein Municipal Airport (12.4 miles)

  • Lowest

  • Average June

  • Highest

Climate (2019–Present)

Oelwein Municipal Airport (12.4 miles)

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  • Average Low 2019–2024

    38.2 °F
  • Average 2019–2024

    47.8 °F
  • Average High 2019–2024

    57.3 °F
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