October in Madison averages a daily high of 16.6°C with nights around 3.9°C. Expect roughly 10.1 wet days totalling 78.3mm. Generally workable, with some weather to plan around.
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 October data.