Sumner Weather Forecast

    • 58
    • 81

    Increasing Clouds

    • 52
    • 74

    Rain Showers

    • 42
    • 63

    Slight Chance Thunderstorms

    • 45
    • 63

    Mostly Cloudy

    • 51
    • 66

    Rain Showers

    • 42
    • 63

    Rain Showers

    • 40
    • 58

    Mostly Cloudy

Today 22 Apr Bremer

Mostly sunny. Near steady temperature in the upper 70s. South Winds 10 to 15 Mph with Gusts up to 25 Mph.

Tonight 22 Apr Bremer

Mostly clear late this Evening, then becoming mostly cloudy. Lows in the upper 50s. South Winds 10 to 15 Mph with Gusts up to 25 Mph.

Graph Plots Open in Graphs

  • Temperature Forecast NOAA

  • Temperature Real-Time

Sumner Temperature Statistics

April Temperature

Oelwein Municipal Airport (12.4 miles)

  • Lowest 7 April, 2026

    23 °F

  • Average April

    47.1 °F

  • Highest 17 April, 2026

    80.6 °F

Climate (2021–Present)

Oelwein Municipal Airport (12.4 miles)

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

  • Average Low 2021–2026

    38.7 °F

  • Average 2021–2026

    48.4 °F

  • Average High 2021–2026

    58.2 °F
Get WillyWeather+ to remove ads