December in Bolingbrook averages a daily high of 2.7°C with nights around -5.3°C. Expect roughly 10.7 wet days totalling 58.8mm. A hard month to visit for comfort alone.
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 December data.