Sumner Weather Forecast

    • 31
    • 46

    Breezy

    • 28
    • 48

    Chance Snow Showers

    • 45
    • 56

    Partly Sunny

    • 46
    • 75

    Mostly Sunny

    • 57
    • 76

    Partly Sunny

    • 50
    • 75

    Rain Showers Likely

    • 38
    • 60

    Chance Rain Showers

Today 18 Apr Bremer

Sunny, breezy and much cooler with Highs in the upper 40s. West Winds around 25 Mph with Gusts up to 35 Mph.

Tonight 18 Apr Bremer

Mostly clear. Lows in the lower 30s. Northwest Winds 15 to 20 Mph with Gusts up to 30 Mph, becoming west 5 to 10 Mph after midnight.

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  • 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

    47.4 °F

  • Highest 13 April, 2026

    75.2 °F

Climate (2021–Present)

Oelwein Municipal Airport (12.4 miles)

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  • Average Low 2021–2026

    38.6 °F

  • Average 2021–2026

    48.4 °F

  • Average High 2021–2026

    58.2 °F
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