July in Cary averages a daily high of 32.3°C with nights around 21.4°C. Expect roughly 8.2 wet days totalling 121.2mm. Generally workable, with some weather to plan around.
Across the year, the best time to visit Cary is April–May.
Based on RALEIGH STATE UNIVERSITY, NC US (7.4km), 1995–2024. 30 years of July data.