"The warming impact of El Niño in our region, particularly as we progress toward winter, may result in a compressed fall color season with leaves changing all at once in late fall." Christy Rollinson, senior scientist in forest ecology at The Morton Arboretum in Lisle, said this on September 22, as the El Niño in the Pacific reached record levels.
The calendar runs on a different schedule. Most of the Forest Preserve District of DuPage County's fall programs fall between October 10 and Halloween, and most of them happen after dark, by lantern or pumpkin light. If Rollinson's outlook holds, the brightest leaves of 2026 will show up after most of those events are over. That makes this October a two-part season. Spend the first half on the scheduled nights, and keep the last week of October and the first part of November free for the trees.
Where things stand on October 4
The Arboretum's most recent Fall Color Report, dated Wednesday, September 30, says most trees are still green. The color so far is on trees in stressful spots, such as parking lots and along pavement. Freeman's maples there are showing some red. Hackberries and Kentucky coffeetrees are turning yellow, and lindens and walnuts have scattered yellow leaves.
Those early trees don't tell you much about the rest of the season. In a typical year, maples hit their brightest and most even color in mid-October and oaks follow in late October. Leaves usually stay on Chicago-area trees into early to mid-November.
This year has two things pulling against that average:
- The summer swung both ways. Drought early in the season would normally mean earlier color. Then the last 90 days brought well above-average rain, which offset the drought.
- El Niño is expected to keep fall warm. National Weather Service outlooks call for warmer-than-average temperatures in October, November, and December. "If this holds, we expect El Niño to delay autumn color in general," Rollinson said.
She also named what could end the wait. "Once we see several nights of freezing temperatures that leaves can't survive for long, their colors will begin to change quickly." In practice, the color forecast is a weather forecast. A run of freezing nights in late October or early November is the sign to get outside within days, not weeks.
If maples get pushed back and oaks don't, the two peaks could land much closer together than usual. That is a reasonable reading of a "compressed" season, though Rollinson framed the whole outlook as conditional. It would mean one short window where a single walk catches both the orange maples and the burgundy oaks.
The first half of October belongs to the calendar
None of the events below depend on leaf color. Most are lit by pumpkins, lanterns, or arena lights, so they work whether the trees have turned or not.
- Glass Pumpkin Patch, October 9 to 11, Morton Arboretum. The 16th annual event sets out more than 7,000 glass pumpkins and is included with admission.
- Fall Festival at Danada, October 10 and 11, 11 a.m. to 5 p.m. It runs at the Danada Equestrian Center, 3S507 Naperville Road in Wheaton. Admission and parking are free. Some activities have fees, and cash or check is preferred. The arena lineup includes the Midwest Renegades, Chicago Vaulting, and the Stateline Hotshots Rodeo Drill Team. You can also tour the barn that once housed Kentucky Derby winner Lucky Debonair and ride a tractor-drawn wagon through the woods. Food trucks include La Cocina de Maria, Nick's Pizza, Travelin' Tom's Coffee, Kona Ice of Wheaton, Serna's Grill, and Stix & Noodles. The festival runs rain or shine.
- Gothic Ghost Stories, October 9 and 24, 7 to 8 p.m., Mayslake Peabody Estate in Oak Brook. Ages 18 and up, $5 per person. Mayslake Hall and the Portiuncula Chapel are closed for master-plan work, but the surrounding preserve and its off-leash dog area are open daily.
- Autumn Reserve Wine Experience, October 15, and Plant Bingo, October 17, Morton Arboretum. Both are new this year.
- Pumpkin Night Hike for Families, October 16 and 17, Fullersburg Woods in Oak Brook. Self-guided groups head out every 15 minutes from 5:30 p.m. The last group leaves at 7:30, and the trails close at 9. Tickets are $10 for ages 3 and up and free for ages 2 and under. Anyone under 18 needs an adult.
October 15 matters for a second reason. Public tickets for Illumination go on sale that day. This year's run is November 14 through January 2, with four new large installations and a new Pine Whistle Railroad model-train add-on.
Late October is where the two schedules may meet
The St. James Farm events in Warrenville fall right around the typical oak peak:
- Halloween Wagon Ride, Thursday, October 22, 6 to 8:30 p.m. A 2-mile tractor-drawn ride leaves every 30 minutes, starting with a ghost story and ending with a conversation by the fire. Tickets are $10 for ages 3 and up.
- Lantern-Lit Halloween Hike, October 23 and 24, 6 to 9 p.m. A 2-mile self-guided trail, with groups leaving every 15 minutes until 7:30. Tickets are $10 per person.
St. James Farm also has one of the District's more unusual places to see color. Its tree-lined allées are each planted with a single species, including red maple, river birch, and black walnut. A daylight walk down the allées before an evening hike gives you the farm two ways in one weekend.
The same Saturday, October 24, the Arboretum holds its Fall Color 5K Run and Walk, and its Walking Plays production of Wuthering Heights runs on weekends through October 25.
The month closes with two family events. Lanterns and Legends at Fullersburg Woods, October 30 from 5 to 8 p.m., supplies pumpkin-carving and candle-crafting materials for $15 per pumpkin. Horsin' Around Day at Danada, October 31 from noon to 4 p.m., offers free trick-or-treating, with wagon rides at $5 for ages 5 and up.
Where to be when the color turns
When the cold nights come, it helps to already know which kind of tree you're going to see. These spots are grouped by what they're known for.
For maples
- Morton Arboretum Maple Collection, on East Side Main Trail Loop 3 near parking lot P-14. Look for orange sugar maples, yellow Miyabe maples, and red Japanese maples.
- Morton's East Woods, for orange and yellow sugar maples, starting from parking lots P-6 through P-13.
- Maple Grove in Downers Grove, a remnant maple forest with a yellow-orange canopy.
- Meadow Lake Trail at the Arboretum, a paved half-mile loop past red, yellow, and burgundy maples, river birch, oaks, and fall grasses.
For oaks
- Morton's Oak Collection, which turns burgundy. It holds more than 200 oak trees of 56 kinds across 12 East Side acres, along Main Trail Loop 3 near P-8.
- Herrick Lake in Wheaton, where the mature upland woods include 150-year-old white, red, and bur oaks. The District also suggests it for foliage reflected on the water.
- Greene Valley in Naperville, where oak-lined trails turn amber and rusty red.
For a view from above
- Sawmill Creek Bluff Overlook at Waterfall Glen in Darien, looking over the Rocky Glen waterfall, and the Des Plaines River Overlook farther south. The preserve has nearly 11 miles of mapped trails through oak-maple woodlands.
- Salt Creek Overlook at Fullersburg Woods, at the north end of the Night Heron Trail, among oaks, maples, hickories, and sycamores.
- Mount Hoy at Blackwell in Warrenville and the hill at Meacham Grove. If you drive to Blackwell, expect possible detours and temporary closures on Mack Road between Williams Road and Route 59 while utility and sewer work continues.
For a single fast drop
- The Arboretum's Ginkgo Collection, near the Japan Collection along Main Route road. Ginkgos are known for dropping their yellow leaves all at once. In a compressed season, that may be the hardest show to time, which is a good reason to check in on it often.
- Frost Hill at the Arboretum, where black tupelo turns scarlet and purple.
Following the update each week
The Arboretum usually posts its Fall Color Report on Wednesdays during the fall so visitors can plan their weekends. That puts the next updates on October 7, 14, 21, and 28. The September 30 report said to watch for yellowing in Miyabe's maples, Kentucky coffeetrees, tree lilacs, hackberries, and redbuds over the following week or so, with reds starting in sumac, Virginia creeper, and dogwoods. It also said the forecast of cooler days and nights could slow the development of more intense color.
The plan, then, has two parts. Book the October 10 to 24 events now while tickets are easy to get. Watch the Wednesday reports and the overnight lows, and when several freezing nights show up in the forecast, pick one of the maple or oak spots above for that weekend.
Our team lives and works near these same trails, from Herrick Lake to St. James Farm. If a fall walk past your own street has you wondering what your home is worth heading into spring, The Lance Kammes Team can give you a straight answer. Get a Free Home Valuation, and we'll walk you through the local numbers behind it.
