Pack or skip
Insect repellent for Chicago in July
Verdict
Pack it
Warm (84°F) plus 10 rainy days = mosquito conditions.
Why
Chicago in July averages highs of 84°F, lows of 66°F, 10 rainy days.
That climate means insect repellent earns its space in the bag. Warm (84°F) plus 10 rainy days = mosquito conditions.