Climate almanac
Rock Island
Illinois, United States · 41.51°, -90.58°
What is the weather like in Rock Island in July?
In July, Rock Island is typically 85°F (29°C) during the day and 68°F (20°C) at night. The month brings about 3.6 in (91 mm) of precipitation in total.
- Average high85°F (29°C)
- Average low68°F (20°C)
- Precipitation3.6 in (91 mm)
- Clear or mostly clear days13
- Based on2016-2025 daily ERA5 reanalysis data (10-year normals)