October in Bolingbrook averages a daily high of 17.5°C with nights around 6.6°C. Expect roughly 10.6 wet days totalling 94mm. Generally workable, with some weather to plan around.
Across the year, the best time to visit Bolingbrook is August–September.
Based on ROMEOVILLE WEATHER FORECAST OFFICE, IL US (10.6km), 1995–2024. 28 years of October data.