July in Sandy averages a daily high of 33.4°C with nights around 20.3°C. Expect roughly 3 wet days totalling 13.3mm. Generally workable, with some weather to plan around.
Across the year, the best time to visit Sandy is May–June.
Based on COTTONWOOD WEIR, UT US (9km), 1995–2024. 29 years of July data.