October in Milwaukee averages a daily high of 16.1°C with nights around 7.1°C. Expect roughly 10.3 wet days totalling 70.8mm. Generally workable, with some weather to plan around.
Across the year, the best time to visit Milwaukee is June–September.
Based on MILWAUKEE MITCHELL AIRPORT, WI US (9.3km), 1995–2024. 30 years of October data.