Illinois Fall Foliage 2026
Northern Illinois hits peak around October 15, with sugar maples, oaks, and hickories turning along the Illinois and Mississippi river corridors. Starved Rock State Park's wooded canyons offer concentrated color in the north. The Shawnee National Forest in the far south runs about two weeks later, with peak color typically arriving in late October across its ridge-and-hollow terrain.
When Illinois peaks
Oct 11 – Oct 19
Centered on Oct 15. Northern Illinois peaks mid-October; Shawnee in the south, late October.
low confidence. Long range. Treat as a planning estimate only.
Where peak usually lands. Drought or an early freeze moves it by a few days. Method
What turns here
- sugar maple
- oak
- hickory
- cottonwood
Yellows show up every year. Reds need sunny days and cool, frost-free nights. A bad year takes those first.
Color progression
Typical peak Oct 15Typical color progression for Illinois. No change from Sep 7 to Sep 24. First color from Sep 24 to Oct 3. Approaching peak from Oct 3 to Oct 11. Peak from Oct 11 to Oct 19. Past peak from Oct 19 to Oct 29. Bare from Oct 29 to Nov 12.
Color starts around Sep 24.
Peak by elevation
11 days between the ridges and the valleys. County maps average this away, which is how you miss peak at the right place.
| Elevation band | Approx. elevation | Typical peak | Today |
|---|---|---|---|
| High ridges & passes | 3,100 ft | Oct 6 | No change |
| Mid elevation | 600 ft | Oct 15 | No change |
| Valleys & lowlands | 0 ft | Oct 17 | No change |
Foliage stages
- No change 0–10%
- First color 10–25%
- Approaching peak 25–60%
- Peak 60–90%
- Past peak 40–70%, dropping
- Bare <20%
Light at peak
Illinois on October 15, the day it typically peaks. Knowing when color arrives is one thing. Knowing where the sun will be is another.
| Event | Time |
|---|---|
| First light (blue hour) Sun 6° below horizon | 6:39 AM |
| Sunrise Rises E · 101° | 7:07 AM |
| Morning golden hour ends 37 min of low, warm light | 7:44 AM |
| Solar noon Highest sun, flattest light | 12:41 PM |
| Evening golden hour starts 37 min before sunset | 5:38 PM |
| Sunset Sets W · 259° | 6:15 PM |
| Last light (blue hour) Sun 6° below horizon | 6:43 PM |
Times in America/Chicago · day length 11h 8m · computed from NOAA solar equations
Which way to point the camera
Sun rises E, sets W.
Aim within 45° of those and the canopy glows translucent. Turn your back to them for flat, accurate color.
Location pages name the light directly.
Where to shoot in Illinois
2 researched locations, earliest peak first.
- Lovers Leap Overlook No change
Illinois River Valley · 551 ft · peaks Oct 15
A St. Peter sandstone butte roughly 100 feet above the Illinois River, with the lock and dam upriver and oak-covered bluffs running downstream. River fog on cold mornings stacks behind the near timber and gives the flat valley depth.
- Garden of the Gods Observation Trail No change
Shawnee Hills · 817 ft · peaks Oct 23
Camel Rock and a line of wind-cut sandstone blocks sit on a ridge above unbroken hickory and black gum forest in the Shawnee National Forest. The flagstone trail puts the formations in the near frame with the wilderness ridge stacked behind them.
Recent reports from Illinois
Report what you sawCommon questions
- When do the leaves change in Illinois?
- Illinois typically peaks Oct 11 – Oct 19, centered on Oct 15. Northern Illinois peaks mid-October; Shawnee in the south, late October. These are typical dates from a latitude and elevation model, not a live reading of this year's canopy.
- Does elevation change when fall color peaks in Illinois?
- Yes, by about 11 days. High ground around 3,100 ft peaks near Oct 6, while valleys near 0 ft wait until Oct 17. Peak moves roughly 3.5 days earlier for every 1,000 feet you climb, so if you miss it low you can often drive up and find it.
- Where are the best places to see fall color in Illinois?
- We track 2 verified locations in Illinois, including Lovers Leap Overlook, Garden of the Gods Observation Trail. Lovers Leap Overlook turns first, around Oct 15, and Garden of the Gods Observation Trail is last, around Oct 23. Each has real coordinates, elevation and sunrise light times.
- What trees turn color in Illinois?
- Mainly sugar maple, oak, hickory, cottonwood. Yellows and oranges come from carotenoids that are already in the leaf, so they show up every year. Reds are made fresh each autumn and need warm sunny days with cool, frost-free nights, which is why a dry summer or a warm September produces a duller year.