Max elevation: 774 ft / 236 m Min elevation: 575 ft / 175 m Elevation change: 199 ft / 61 m
Max grade: 10% Min grade: -9.5% Steepness score: 12 + 1004 + 8178 + 1 = 9195
Distance: 22.98 mi / 36.99 km Travel Time: 30 mins
It looks like one possible route that might be flatter would be to go through Elmhurst, but make sure you double check everything if you're planning a road trip.
Elevation data comes from different sources and may not reflect true
driving conditions, so talk to other RVers if you're concerned about
steep grades. If you're planning to drive in the winter and you want to avoid snow, check the road conditions from Chicago to Downers Grove. You can also view a 3-D map of Chicago elevation or Downers Grove elevation.
These are some of the possible highways along this route. Use the GPS in your car to verify all driving directions. If you're looking for campgrounds along the way, search for RV parks between Chicago and Downers Grove.