Three-year-old Madalynn Kerley with her sister Melody, 4, and mother Michelle, all of Palatine, enjoy the swing at North School Park in Arlington Heights .

George LeClaire | Staff Photographer

The Mundelein Park District sign reflects the warm weather of the day.

Gilbert R. Boucher II | Staff Photographer

Todd Whitman of Batavia cools down after enjoying a jog through Fabyan Forest Preserve in Geneva .

Brian Hill | Staff Photographer

Mike Burke of Vernon Hills enjoys the unseasonably warm weather while sitting with his Huskies at the Dog Exercise Area in the Lake County Forest Preserves along Rt. 176 east of Wauconda.

Bob Chwedyk | Staff Photographer

Beth Schumaker of Wauconda walks her two daughters Paige, left, and Grace from preschool at Homer T. Cook Memorial Park, while enjoying the unseasonable warm weather.

Bob Chwedyk | Staff Photographer

Libertyville Public Works employee John Bolton repairs a water main after extreme fluctuating temperatures during the past month caused multiple breaks around the town.

Gilbert R. Boucher II | Staff Photographer

Teri Baxter, left, and Carrie Wasmund, both of Batavia work their way through a loop at Fabyan Forest Preserve in Geneva as temperatures reached into the 60's today in the Fox Valley and residents took advantage of the mild January day. "It's beautiful, I can't believe it is going to be in 30's by Sunday." said Baxter.

Brian Hill | Staff Photographer

Jarrod Rickertsen of St. Charles and Oreo make their way along the Fox River at Fabyan Forest Preserve in Geneva Tuesday January 29, 2013.

Brian Hill | Staff Photographer

The sign at Wauconda High School at noon reflects the unseasonable weather Tuesday.

Bob Chwedyk | Staff Photographer

Mundelein High School students Tyreese Herdle, left, and Brendan Mooney, join classmates as they run in shorts and tee shirts during P.E. class on a warm January day.

Gilbert R. Boucher II | Staff Photographer

An umbrella was a good thing to have for a while as people entered the College of DuPage Tuesday morning.

Mark Black | Staff Photographer

Melanie Morrell, 2, splashes around in a puddle in Central Park in Naperville during an outing with her mom and brother on Tuesday.

Bev Horne | Staff Photographer

Andrew Baur and Elizabeth Kennedy, both of Wheaton College, enjoy balmy January temperatures, walking near downtown Wheaton.

Daniel White | Staff Photographer

With the temperature of 59 degrees at the time, Drew Pearce of Aurora who was running with the Glen Ellyn Runners Club, was able to run in just a pair of shorts and tee shirt, Tuesday

Mark Black | Staff Photographer

Four-year-old Melody Kerley, her sister Madalynn, 3, and mother Michelle, all of Palatine, ride the swing at North School Park in Arlington Heights on Tuesday.

George LeClaire | Staff Photographer

Kea Bucataru, 7, rides down the slide, with her sister Corrie, 5, both of Arlington Heights, trailing behind her at North School Park in Arlington Heights on Tuesday.

George LeClaire | Staff Photographer

Alyssa Robinson, left, and Griselda Macias, both of Palatine walk past the temperature sign at Mario Gambino and Sons Landscaping on Rand Road indicating 67 degrees, while taking their lunch back to work on Tuesday in Palatine.

George LeClaire | Staff Photographer