Sumner Weather Forecast

    • 63
    • 82

    Rain Showers

    • 60
    • 72

    Rain Showers

    • 60
    • 79

    Mostly Sunny

    • 61
    • 80

    Mostly Sunny

    • 63
    • 81

    Mostly Sunny

    • 64
    • 83

    Chance Rain Showers

Today 30 Jul Bremer

Mostly sunny. Humid with Highs in the lower 80s. South Winds 5 to 10 Mph.

Tonight 30 Jul Bremer

Mostly cloudy. A chance of Showers with a slight chance of Thunderstorms after midnight. Locally heavy rainfall possible after midnight. Humid with Lows in the mid 60s. Southeast Winds 10 to 15 Mph. Chance of rain 50 percent.

Graph Plots Open in Graphs

  • Temperature Forecast NOAA

  • Temperature Real-Time

Sumner Temperature Statistics

July Temperature

Oelwein Municipal Airport (12.4 miles)

  • Lowest 6 July, 2026

    64.4 °F

  • Average July

    74.7 °F

  • Highest 1 July, 2026

    87.8 °F

Climate (2021–2026)

Oelwein Municipal Airport (12.4 miles)

Take a look at our website widgetsAvailable free! Find Out More

  • Average Low 2021–2026

    38.6 °F

  • Average 2021–2026

    48.3 °F

  • Average High 2021–2026

    58.1 °F
Get WillyWeather+ to remove ads