The Northwest Illinois Calendar
What’s Happening
154 upcoming festivals, concerts, markets and main-street traditions across all four counties.
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Put It on the Calendar
Festivals, fundraisers, live music, farmers markets — if it happens in Carroll, Lee, Ogle or Whiteside County, we want it here. It’s free.
FamilyNachusa Grasslands August Nature Tours10:00 AM – 12:00 PMNachusa Grasslands · Franklin Grove(Event Photo by Dee Hudson)
CommunityRock Falls River Chase10:30 AM – 5:00 PMSeward Riverside Park · Rock FallsThe Rock River Chase returns to Rock Falls, Illinois, Aug. 15–16, 2026, bringing the excitement of stock outboard boat racing back to the Rock River at Seward’s Park. This longtime summer tradition features high-speed racing action as drivers from across the region compete on the water in a family-friendly atmospher…
Festivals & FairsLincoln Highway Heritage Festival11:00 AM – 6:00 PMDowntown Rochelle, IL · RochelleCelebrate one of America’s most iconic roadways during the Lincoln Highway Heritage Festival in Rochelle, Illinois, Aug. 14–16, 2026. This family-friendly summer festival honors the history and legacy of the historic Lincoln Highway while bringing the community together for three days of entertainment, activities, f…