Pack or skip
Insect repellent for Chicago in June
Verdict
Pack it
Warm (80°F) plus 10 rainy days = mosquito conditions.
Why
Chicago in June averages highs of 80°F, lows of 61°F, 10 rainy days.
That climate means insect repellent earns its space in the bag. Warm (80°F) plus 10 rainy days = mosquito conditions.