Chicago weather in July
July in Chicago: hot, rainy — a great time to visit.
#5 of 12 months in Chicago · #287 of 604 destinations to visit in July · comfort 79/100 (tier B)
Updated June 2026 · climate normals from ERA5 reanalysis
Chicago climate normals — July
| Daytime high | 27°C / 81°F | 🥵 hot |
|---|---|---|
| Nighttime low | 20°C / 68°F | |
| Feels like (high) | 30°C / 86°F | |
| Rainfall | 94 mm / 3.7 in | 🌧 rainy |
| Rainy days | 11 days | |
| Humidity | 73% | 💧 humid |
| Dew point | 17°C / 63°F | |
| Sunshine | 11.9 h/day | |
| Daylight | 14.9 h | |
| Wind | 17 km/h / 11 mph | |
| Air quality (US AQI) | 62 | 🙂 moderate |
Monthly averages from ERA5 reanalysis. AQI is the mean US Air Quality Index for the month.
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Chicago in July — FAQ
- Is July a good time to visit Chicago?
- July in Chicago: hot, rainy — a great time to visit. It ranks #5 of 12 months for Chicago on SeasonMap's comfort score (79/100).
- What is the weather like in Chicago in July?
- In July, Chicago averages a daily high of 27°C and a low of 19.9°C, with about 94.1 mm of rain over roughly 11.2 rainy days.
- What is the air quality in Chicago in July?
- Chicago has a mean US Air Quality Index of about 62 in July.