Illinois Climate

Wide variation between hot summers and freezing winters, especially in the north of the state. The highest humidity is in the summer near the Great Lakes.

Required Clothing

Warm winter clothes are needed in the coldest months. Light to mediumweights are advised for the summer. Rainwear may be useful.

Need some holiday inspiration?
Tired of the same holiday destination?
Fresh ideas are just one click away...
Sign up for our newsletter
Be the first to hear about the coolest destinations and the latest travel trends. Plus, competitions, holiday inspiration and amusing facts, delivered directly to your inbox. Sign up for our newsletter
Advertisement

Travel Deals

Advertising features
Travel Partners
Advertisement
Advertisement
Advertisement
Spot the holiday killer - Protect yourself from malaria. Before you travel, find out if your holiday destination is in a malaria zone.

Quick links