June in Des Plaines averages a daily high of 26.9°C with nights around 15.6°C. Expect roughly 11.5 wet days totalling 101.7mm. Comfortable conditions for being outdoors all day.
Across the year, the best time to visit Des Plaines is August–September.
Based on CHICAGO OHARE INTERNATIONAL AIRPORT, IL US (9.1km), 1995–2024. 30 years of June data.