Fall in Kalamazoo can be beautiful. Cooler weather, changing colors and harvest time. It's generally warm enough for biking or kayaking or a walk in the woods.
Fall events around Kalamazoo
September 1-3 Lawrence Ox Roast Lawrence
September 9-11 Paw Paw Wine and Harvest Festival Paw Paw
September 15 Apple Fest Coldwater
September 21-23 Grand Haven Salmon Festival Grand Haven
September 29 9am Fall Birding Trip Kellogg Biological Station Augusta
October 5-7 Harvest Fest St. Joseph
October 6-7 Scotts Old Tyme Harvest Festival Scotts Mill County Park Scotts
October 7 Fall Color Cruise [pdf] Kalamazoo River Valley Trail Kalamazoo
October 13-14 Cranefest XVIII Bellevue
October 13-14 Fennville Goose Festival Fennville
October 21-22 Arts and Eats Tour Hastings, Middleville, Hickory Corners, and surrounding areas
Also consider:
All Things Autumn from West Michigan Tourist Association
September Events from Pure Michigan and October Events and November Events
Fall recommendations from 52 Michigan Weekends
a Fall Color Tour or an Apple Tour
Fresh apple cider from VerHages Cider Mill.
West Michigan Tourist Association has a list of Harvest Time Festivals, a Weekly Color Report, and more Color Tours
Fall walks and rides on the Kalamazoo River Valley Trail
Event listings from Discover Kalamazoo
Gazelle Sports' calendar of West Michigan Races and Running Workshops
League of Michigan Bicyclist's Michigan Ride Calendar
West Michigan Coastal Kayaker's Association Event Calendar
Outdoor Athlete has lists for Michigan running, biking and triathlon events.
The Department of Natural Resources has calendars of events for State Parks and Recreation Areas: September, October, November