Sumner Weather Forecast
- 65
- 84
Chance Thunderstorms
- 75
- 88
Rain Showers Likely
- 76
- 94
Breezy
- 75
- 94
Chance Rain Showers
- 68
- 89
Rain Showers
- 66
- 83
Rain Showers
Today 19 Jun Bremer
Sunny. Highs in the mid 80s. West Winds 5 to 10 Mph.
Tonight 19 Jun Bremer
Mostly clear in the Evening, then partly cloudy with a chance of Showers and Thunderstorms after midnight. Lows in the mid 60s. South Winds around 10 Mph. Chance of rain 40 percent.
Sumner Temperature Statistics
June Temperature
Oelwein Municipal Airport (12.4 miles)
Lowest 10 June, 2025
48.2 °FAverage June
68.6 °FHighest 11 June, 2025
91.4 °F
Climate (2020–Present)
Oelwein Municipal Airport (12.4 miles)
Average Low 2020–2025
38.2 °FAverage 2020–2025
48 °FAverage High 2020–2025
57.7 °F