Climate almanac
Grand Boulevard
Illinois, United States · 41.81°, -87.62°
What is the weather like in Grand Boulevard in September?
In September, Grand Boulevard is typically 73°F (23°C) during the day and 64°F (18°C) at night. The month brings about 2.7 in (68 mm) of precipitation in total.
- Average high73°F (23°C)
- Average low64°F (18°C)
- Precipitation2.7 in (68 mm)
- Clear or mostly clear days14
- Based on2016-2025 daily ERA5 reanalysis data (10-year normals)