Decorah Weather Forecast
- 58
- 72
Rain Showers
- 52
- 75
Mostly Sunny
- 52
- 75
Mostly Sunny
- 55
- 76
Partly Sunny
- 58
- 76
Mostly Cloudy
- 60
- 75
Slight Chance Rain Showers
Today 30 Jul Winneshiek
Showers with Thunderstorms likely this Morning, then scattered Showers and Thunderstorms this afternoon. Cooler with Highs in the lower 70s. Northeast Winds 5 to 10 Mph. Chance of rain 100 percent.
Tonight 30 Jul Winneshiek
Mostly cloudy. Isolated Showers and Thunderstorms in the evening. Cooler with Lows in the upper 50s. Northeast Winds 5 to 10 Mph. Chance of rain 20 percent.
Decorah Temperature Statistics
July Temperature
Decorah (2.5 miles)
Lowest 18 July, 2025
53.6 °FAverage July
73.3 °FHighest 4 July, 2025
87.8 °F
Climate (2020–Present)
Decorah (2.5 miles)
Average Low 2020–2025
39.2 °FAverage 2020–2025
47.9 °FAverage High 2020–2025
56.4 °F