July in Madison averages a daily high of 28.1°C with nights around 15.9°C. Expect roughly 9.9 wet days totalling 115.6mm. Comfortable conditions for being outdoors all day.
Across the year, the best time to visit Madison is June–September.
Based on UW ARBORETUM MADISON, WI US (4.2km), 1995–2024. 30 years of July data.