July in Cranston averages a daily high of 28.7°C with nights around 18.6°C. Expect roughly 9.4 wet days totalling 82.5mm. Generally workable, with some weather to plan around.
Across the year, the best time to visit Cranston is May–September.
Based on RHODE ISLAND T.F. GREEN INTERNATIONAL AIRPORT, RI US (6.4km), 1995–2024. 30 years of July data.