July in Elgin averages a daily high of 29°C with nights around 17.4°C. Expect roughly 9.5 wet days totalling 105.8mm. Generally workable, with some weather to plan around.
Across the year, the best time to visit Elgin is August–September.
Based on ELGIN WATER, IL US (2.9km), 1995–2024. 29 years of July data.