May in Elmhurst averages a daily high of 21.8°C with nights around 13°C. Expect roughly 11.8 wet days totalling 91.1mm. Comfortable conditions for being outdoors all day.
Across the year, the best time to visit Elmhurst is May–June.
Based on LAGUARDIA AIRPORT, NY US (4.8km), 1995–2024. 30 years of May data.