Bluffton Weather Forecast
- 74
- 88
Slight Chance Thunderstorms
- 72
- 91
Chance Rain Showers
- 67
- 84
Rain Showers Likely
- 67
- 86
Slight Chance Thunderstorms
- 68
- 86
Slight Chance Thunderstorms
- 69
- 90
Slight Chance Thunderstorms
Today 22 Jul Winneshiek
Mostly cloudy with a slight chance of Showers and Thunderstorms in the Morning, then partly sunny in the afternoon. Humid with Highs in the upper 80s. South Winds 10 to 15 Mph. Chance of rain 20 percent. Heat index Values up to 100 in the afternoon.
Tonight 22 Jul Winneshiek
Partly cloudy. Humid with Lows in the mid 70s. South Winds 10 to 15 Mph. Heat index Values up to 100 early in the evening.
Bluffton Temperature Statistics
July Temperature
Decorah (11.8 miles)
Lowest 18 July, 2025
53.6 °FAverage July
72.4 °FHighest 4 July, 2025
87.8 °F
Climate (2020–Present)
Decorah (11.8 miles)
Average Low 2020–2025
39.2 °FAverage 2020–2025
47.9 °FAverage High 2020–2025
56.4 °F