Graue Mill and Museum in Oak Brook, Illinois, generally opens Wednesday through Sunday from mid-April to mid-November. These Graue Mill hours can help you plan a visit to the historic mill, its demonstrations and the surrounding forest preserve.
- Typical schedule: Wednesday through Sunday, 10 a.m. to 4 p.m., mid-April through mid-November
- Regular demonstrations: Saturdays and Sundays at 2 p.m.
- Admission: Free
Where to verify Graue Mill hours
The Forest Preserve District of DuPage County is the place to confirm current Graue Mill visiting hours and any special changes. The mill is at 3800 York Road, at the corner of York and Spring roads, in Oak Brook, Illinois. For a direct inquiry, the district lists 630-451-3430 as the mill’s contact number.
Opening hours
- Wednesday to Sunday: 10 AM–4 PM
- Monday and Tuesday: closed
Last checked November 2026. Hours can change on holidays and for special events.
Before you go, check the official site of the Forest Preserve District of DuPage County for the latest operating details. The district also directs visitors to sign up for “POPUP” text alerts about special pop-up programs.
Seasonal opening and special dates
Graue Mill generally welcomes visitors from mid-April through mid-November, with regular weekly opening Wednesday through Sunday, 10 a.m. to 4 p.m. It is closed on Mondays, Tuesdays and select holidays, so check for holiday exceptions when planning your day.
Admission to Graue Mill and Museum is free. The surrounding Fullersburg Woods Forest Preserve follows a separate daily schedule: it is open from one hour after sunrise until one hour after sunset. Accessible portable toilets are available near the mill and museum from mid-April through mid-November.
Tour and demonstration schedules
Regular demonstrations take place on Saturdays and Sundays at 2 p.m. Programs cover milling, spinning and weaving, illustrating life between 1850 and 1860.
If you want to pair a demonstration with time in the preserve, arrive during the mill’s opening hours and allow for the program before exploring the grounds. The Graue Mill visiting guide covers other details that can help you plan your visit.
The mill’s story reaches back to 1849, when Frederick Graue and William Asche purchased land along Salt Creek to build a gristmill. It opened in April 1852, and the Graue family operated it for 70 years.
The Forest Preserve District acquired the mill in 1933 and decided the following year to restore it to its mid-1800s operations. Graue Mill was added to the National Register of Historic Places in May 1975, and the American Society of Mechanical Engineers recognized it as an Illinois Historic Mechanical Engineering Landmark in 1981.
Access details to confirm before leaving
- Hours
- the preserve’s daily access window does not mean the mill is open every day
Check the mill’s schedule separately from the forest preserve’s hours: the preserve’s daily access window does not mean the mill is open every day. Keep in mind that the seasonal availability of accessible portable toilets follows the mill’s mid-April-to-mid-November period.
For help with a specific access question, call the mill’s listed contact number before travelling. Graue Mill is about a 10-minute drive from Hillside Manor Motel. You can book a room at Hillside Manor Motel.
FAQs
What are the usual Graue Mill opening hours?
Open Wednesday to Sunday; closed Monday and Tuesday. The mill's season runs from mid-April through mid-November. The mill closes on select holidays.
Do you need to pay admission?
No. Admission to Graue Mill and Museum is free.
When are the regular demonstrations?
Regular demonstrations are scheduled for Saturdays and Sundays at 2 p.m.
Is Fullersburg Woods open when the mill is closed?
The preserve has its own daily opening pattern, from one hour after sunrise until one hour after sunset. Its schedule is separate from the mill’s seasonal hours.