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The Northwest Illinois Calendar

What’s Happening

Festivals, concerts, markets and main-street traditions across all four counties.

154 upcoming events across Northwest Illinois.

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0 eventsSeptember 2025Lee CountyClear all

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Festivals, fundraisers, live music, farmers markets — if it happens in Carroll, Lee, Ogle or Whiteside County, we want it here. It’s free.

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Events in September 2025, by day
SundayMondayTuesdayWednesdayThursdayFridaySaturday
31Sunday, August 31, 20251Monday, September 1, 20252Tuesday, September 2, 20253Wednesday, September 3, 20254Thursday, September 4, 20255Friday, September 5, 20256Saturday, September 6, 2025
7Sunday, September 7, 20258Monday, September 8, 20259Tuesday, September 9, 202510Wednesday, September 10, 202511Thursday, September 11, 202512Friday, September 12, 202513Saturday, September 13, 2025
14Sunday, September 14, 202515Monday, September 15, 202516Tuesday, September 16, 202517Wednesday, September 17, 202518Thursday, September 18, 202519Friday, September 19, 202520Saturday, September 20, 2025
21Sunday, September 21, 202522Monday, September 22, 202523Tuesday, September 23, 202524Wednesday, September 24, 202525Thursday, September 25, 202526Friday, September 26, 202527Saturday, September 27, 2025
28Sunday, September 28, 202529Monday, September 29, 202530Tuesday, September 30, 20251Wednesday, October 1, 20252Thursday, October 2, 20253Friday, October 3, 20254Saturday, October 4, 2025