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Celsius/Fahrenheit
Illinois Weather In July
Record and average high and low temperatures for various Illinois cities in July:
| City | Record High | Average High | Average Low | Record Low | Average Rainfall (in.) |
| Chicago |
104 | 84 | 63 | 40 | 3.51 |
| Moline |
105 | 86 | 64 | 46 | 4.03 |
| Peoria |
104 | 86 | 65 | 47 | 4.02 |
| Rockford |
103 | 83 | 63 | 43 | 4.10 |
| Springfield |
112 | 86 | 66 | 48 | 3.53 |
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