Peggy Notebaert Nature Museum is free published dates — for Illinois residents only; free-day tickets are for individual visitors, not group-visit registrations.. Illinois residents get free basic admission on specific 'Illinois Resident Days' clustered throughout the year, or can visit any other day with a $10 suggested household donation. Free-day admission excludes the Judy Istock Butterfly Haven. Reserve online or in person; groups of 10+ cannot use free-day pricing and must book separate discounted group rates. Verified on Peggy Notebaert Nature Museum's own page, last checked 2026-10-01.
| Free day | Published dates |
|---|---|
| Who qualifies | Illinois residents only; free-day tickets are for individual visitors, not group-visit registrations. |
| Reservation | Reserve online or in person; groups of 10+ cannot use free-day pricing and must book separate discounted group rates. |
| What's included | Free basic admission covers general exhibits; the Judy Istock Butterfly Haven is excluded and can be added for $5/person. |
| Regular adult price | Standard adult admission is $15 for Illinois residents, $17 for out-of-state visitors. |
| Source | naturemuseum.org · checked 2026-10-01 |
Regular adult admission at Peggy Notebaert Nature Museum is $15, so timing the visit to the free window keeps $30 in a couple's pocket and up to $60 for a family of four — each published date. That's what Illinois residents only leave on the table every time they pay walk-up prices.
Regular tickets (Standard adult admission is $15 for Illinois residents, $17 for out-of-state visitors.) are on naturemuseum.org — skip third-party sellers, the official price is the floor. Planning a bigger Chicago itinerary? A CityPASS Chicago bundle can undercut separate tickets — just check the current lineup for Peggy Notebaert Nature Museum before paying.
Brookfield Zoo Chicago (announced in batches) · Adler Planetarium (wednesdays 4pm–10pm) · Art Institute of Chicago (3rd thursday monthly 5pm–8pm) · Chicago Children's Museum (no regular free day) · Chicago History Museum (published dates) · DuSable Black History Museum and Education Center (wednesdays) · Field Museum (wednesdays) · Griffin Museum of Science and Industry (published dates) — or see the full free museum days in Chicago guide.
Chicago's free-day calendar, condensed to one email a month — verified dates and resident rules only.
↥ Check another museum → Browse all free museum & zoo days →
Illinois residents get free basic admission on specific 'Illinois Resident Days' clustered throughout the year, or can visit any other day with a $10 suggested household donation. Free-day admission excludes the Judy Istock Butterfly Haven.
Reserve online or in person; groups of 10+ cannot use free-day pricing and must book separate discounted group rates.
The free days are for Illinois residents only; free-day tickets are for individual visitors, not group-visit registrations. — typically with ID or proof of residency. Visitors pay regular admission (Standard adult admission is $15 for Illinois residents, $17 for out-of-state visitors.).
Free basic admission covers general exhibits; the Judy Istock Butterfly Haven is excluded and can be added for $5/person.
Standard adult admission is $15 for Illinois residents, $17 for out-of-state visitors.. That figure is the payoff for planning around the free day.
At $15 per adult, two adults keep $30 and a group of four paying adult prices keeps up to $60 per visit — before parking and extras.