It's also very cold. Paul Poteet says wind chills will struggle to get much above zero until around lunch today.
For those of you hoping for a white Christmas, Poteet says there's a chance. Christmas Day showers could dust the northern half of the state with snow, but the odds of seeing it in this area are about 60 percent.
If you haven't finished up your holiday shopping, you've only got one more day to do it. But be prepared to brave malls and stores that are crowded with fellow last-minute shoppers.
Here's what else you need to know today:
1.The deadline to sign up for Affordable Care health insurance has been extended until midnight
Federal officials pushed back the deadline to enroll in health insurance after acknowledging the government website still had problems signing people up. By late Monday, more than 1 million people logged into Healthcare.gov. Health care coverage will begin Jan. 1 for those who sign up by midnight tonight.
2. Sidelined soccer player finds joy amid pain
This story about a man whose brain injury keeps him from playing the game he loves is less about sports and more about the human spirit. It's powerful storytelling by my colleague, Stephanie Wang, and a must-read in today's paper.
3. The Pacers beat the Nets, 103-86
The Indiana Pacers could have "framed another picture-perfect moment of unity as they thumped the Brooklyn Nets," my colleague Candace Buckner wrote in her coverage of Monday night's game. Pacers forward Paul George said, "This is some of the best basketball we've been playing, and the most fun we've been having."
4. Vote your favorite players into the NFL Pro Bowl
Voting is open for the 2014 Pro Bowl. The National Football League's top two vote-getters on offense and defense will become team captains for Deion Sanders' team and Jerry Rice's team. Those captains pick fantasy draft-style from the voted all-stars to form their teams, regardless of conference. I'll be casting my ballot for my favorite Detroit Lions players, even though they bombed in the second half of the season.
Speaking of football... If you missed Colts punter Pat McAfee's Christmas show last night, be sure to check it out on indystar.com. It's hilarious. He's even wearing a hideous Christmas sweater, just for you.
5. Indiana continues to cope with a wave of flooding
Indianapolis received 3.43 inches of rain since Friday, which forced the city's Department of Public Works to erect barriers in at least 11 locations by Sunday morning. Be sure to check out the terrific photos shot by my colleague, Michelle Pemberton.
6. United Nations says mass grave of 75 found in South Sudan
The United Nations has discovered a mass grave containing about 75 bodies in South Sudan, evidence of the wave of ethnic killings taking place in the world's newest country over the last week, the Associated Press reported.
7. Britney Spears thinks about retiring
Singer Britney Spears joins the list of celebrities contemplating retirement, according to CNN. The 32-year-old pop star has had a hectic year -- a new album, "Britney Jean," preparations for her upcoming two-year Las Vegas residency and her role as a mom to two boys.
8. Two years after death, woman gets her Christmas wish for family
If you haven't read this piece about the woman whose Christmas wishes came true two years after her death, you should. Keep a box of tissues handy.
9. Indianapolis Star coverage prompts a woman to grant a boy's Christmas wish
Star photographer Frank Espich's photo and caption about a young boy's hope for a violin inspired a Greenwood woman to grant the boy's wish. Mary Holmes contacted Espich after seeing the photo in The Indianapolis Star and offered to give the boy a violin she owned. Espich referred Holmes to the Glendale Library. The librarians helped connect Holmes and the boy's mother, who picked up the violin for her son.
10. Track Santa this Christmas
Want to follow Santa as he treks around the globe? You can. Both NORAD and Google offer their own Santa Tracker websites with games and even a phone call from the big man himself.
That rounds up your top stories for Christmas Eve. Have a wonderful holiday.
"Happy Christmas to all, and to all a good night!" ~ Santa Claus in Clement Clarke Moore's famous poem "A Visit from St. Nicholas."
Join the conversation. Follow me on Twitter at @IndyMarisaK or email me at marisa.kwiatkowski@indystar.com. And follow Cori Faklaris at @heycori for The Star's Cheat Sheet, a guide to everything you need to know at indystar.com.