Are you thinking of camping in a tent or using a hotel/motel at night?
With Easter being in late March this year, as noted above, the weather can still be cold and wet and potentially snowy and icy.
Or it could be comfortable shirt sleeve weather and dry roads.
Plan for either.
This weather site seems fun to play around with:
Chicago, Illinois March 2016 Weather Forecast | WeatherTAB
I keep hearing about the Katy trail system and would like to ride that myself one of these years.