A maple leaf is split by colors in Algonquin Wednesday.

John Starks | Staff Photographer

Trees and bushes are changing into their fall colors in Volo Bog State Natural Area.

Gilbert R. Boucher II | Staff Photographer

Trees in the Lakewood Forest Preserve near Wauconda show off their fall splendor.

Paul Valade | Staff Photographer

A fall wind gently blows the leaves of a maple tree in the Lakewood Forest Preserve near Wauconda.

Paul Valade | Staff Photographer

Trees and bushes are changing into their fall colors in Volo Bog State Natural Area.

Gilbert R. Boucher II | Staff Photographer

Trees and bushes are changing into their fall colors in Volo Bog State Natural Area.

Gilbert R. Boucher II | Staff Photographer

Fallen leaves cling to a rock in Tyler Creek in Tyler Creek Forest Preserve as Fall color hits Elgin Wednesday October 10, 2012.

Brian Hill | Staff Photographer

A cold wind blows leaves in Wing Park as Fall color hits the Elgin area Wednesday October 10, 2012.

Brian Hill | Staff Photographer

A red maple, a green willow and an orange oak are layered near the Fox River in Algonquin Wednesday.

John Starks | Staff Photographer

A cold wind blows leaves in Wing Park as Fall color hits the Elgin area Wednesday October 10, 2012.

Brian Hill | Staff Photographer

A leaf mingles with the flowing waters of Tyler Creek in Wing Park as Fall color hits the Elgin area Wednesday October 10, 2012.

Brian Hill | Staff Photographer

Leaves in Wing Park as Fall color hits the Elgin area Wednesday October 10, 2012.

Brian Hill | Staff Photographer

The sun shines bright through the rich colors of fall at Johnson's Mound Forest Preserve in Elburn Tuesday.

Rick West | Staff Photographer

Sunlight falls on a single green plant surrounded by fall colors near the Fox River in Algonquin Wednesday.

John Starks | Staff Photographer

A cyclist relaxes near the Fox River on a gorgeous fall day in South End Park Wednesday in West Dundee, beneath the brilliant red and yellow maple leaves.

Christopher Hankins | Staff Photographer

A leaf falls to the ground at Johnson's Mound Forest Preserve in Elburn Tuesday.

Rick West | Staff Photographer

The spectrum of fall colors are on display at Peck Farm Park in Geneva Tuesday.

Rick West | Staff Photographer

Leaves rest on the forest floor at Johnson's Mound Forest Preserve in Elburn Tuesday.

Rick West | Staff Photographer

Geese on dam # 2 along River Road in Prospect Heights with colorful trees across the Des Plaines River in Allison Woods on Wednesday, October 10.

George LeClaire | Staff Photographer

Early morning light casts muted colors on a thin sheet of morning ice on a crisp autumn morning in Geneva.

Jeff Knox | Staff Photographer

Two colorful tree's leaves blend together to form a rainbow of warm colors in Allison Woods near Wheeling on Wednesday, October 10.

George LeClaire | Staff Photographer

Gail Koelle and her boxer Misha enjoy a stroll in Busse Woods on a balmy autumn afternoon.

Bill Zars | Staff Photographer

Crabapples glow red in the morning sun in downtown Arlington Heights. They will provide food for birds and squirrels this winter and the coming spring.

Bill Zars | Staff Photographer

Maple leafs show their color at the Morton Arboretum in Lisle. Peak color is expected to be some time late next week.

Paul Michna | Staff Photographer

Geese on dam # 2 along River Road in Prospect Heights with colorful trees across the Des Plaines River in Allison Woods on Wednesday, October 10.

George LeClaire | Staff Photographer

Canada geese fly past trees in full fall colors at Blackwell Forest Preserve.

Mark Black | Staff Photographer

A fallen leaf is cover with rain drops on a crisp autumn morning in Geneva. 79016_

Jeff Knox | Staff Photographer

Trees in the Blackwell Forest Preserve are starting to turn color.

Mark Black | Staff Photographer

Jeremy Bennett, left, of Schaumburg and Polett Jasso of Chicago walk with Kristen Olivares and Steve Olivares both of Streamwood on a recent walk through the Morton Arboretum in Lisle. Peak color is expected to be some time late next week.

Paul Michna | Staff Photographer

Maple leafs show their true color at Morton Arboretum in Lisle. Peak color is expected to be some time late next week.

Paul Michna | Staff Photographer

Trees in full fall colors at Blackwell Forest Preserve.

Mark Black | Staff Photographer

A Witch Hazel leaf hanging in the shadows glows as it is backlighted from the morning sun in Arlington Heights.

Bill Zars | Staff Photographer

Boston ivy turns color as it clings to a fence in Arlington Heights.

Bill Zars | Staff Photographer

Bill Zars | Staff Photographer

Two colorful tree's leaves blend together to form a rainbow of warm colors in Allison Woods near Wheeling on Wednesday, October 10.

George LeClaire | Staff Photographer

An elk grazes among the seasonal color at the Elk Grove in Busse Woods Forest Preserve Thursday afternoon near Elk Grove Village.

Bill Zars | Staff Photographer