The waning days of summer are among us, and the onset of autumn is already making visible changes to the hills of the Southern Tier.

Colorful fall foliage continues to emerge across New York state this week, with the most significant changes once again expected in the Adirondacks and Catskills, according to the field reports from more than 85 volunteer observers for the Empire State Development Division of Tourism’s I LOVE NY program.

In Cattaraugus County, a 30% change was reported in Little Valley with mostly yellow and a few orange leaves. Meanwhile, a 25% change in Salamanca and Allegany State Park is seen with shades of yellow and red appearing in some maples.

In neighboring Chautauqua County, a 20% transition is underway with seasonal color mixes viewed at Chautauqua Institution, Panama Rocks Scenic Park, Lake Erie State Park and Chautauqua Lake’s shores near Jamestown.

Elsewhere in the state, the locations with the most significant foliage change this weekend will include Old Forge, Lake Pleasant, Newcomb, Mt. Arab, Tupper Lake and Wanakena in the Adirondacks and Delhi, Colchester and Liberty in the Catskills.

I LOVE NY Fall Foliage reports are obtained from more than 90 volunteer field observers and reflect expected color conditions for the coming weekend. Reports are issued every Wednesday afternoon. I LOVE NY defines “peak” as the best overall appearance the foliage will have during the season, taking into account color transition, brilliance and leaf droppage.

For this week’s full I LOVE NY Fall Foliage report, please visit www.iloveny.com/foliage.

Fall foliage is on display amid the trees at the Hinman Hollow Wetlands Area off Route 219 in Ellicottville on Wednesday afternoon.

Kellen M. Quigley/Olean Times Herald

Early fall colors on the hills pop out amid the dull waters of Ploetz Pond along Route 219 in Ellicottville.

Kellen M. Quigley/Olean Times Herald

Three majestic steel sculptures — the King, Queen and Bishop — sit surrounded by the colorful trees on the Rohr Hill Road site of Griffis Sculpture Park in Ashford Hollow on Wednesday.

Steel geese sculptures take flight in the blue sky with colorful leaves seemingly below them atop the Rohr Hill Road site of Griffis Sculpture Park in Ashford Hollow on Wednesday.

Kellen M. Quigley/Olean Times Herald

Some of the steel sculptures seen atop the Rohr Hill Road site of Griffis Sculpture Park in Ashford Hollow on Wednesday.