http://www.chicagotribune.com/...oll=chi-ent_movies-hed
(High temp was 87 F, Heat Index 90)
I went to it this morning and got to say hi to my friend, my sister and my mother as they ran by. That was between 9 and 10:30. Later I had to go out to the suburbs, where it's hotter and I saw a sign saying it was 96 F out west.
My friend called me there after she finished and told me her final time was 4:16. She said she could have had it at or under 4 hours if she didn't walk the last couple of miles or so.
She also said she saw runners passing out from the heat left and right, and heard many calls of "Runner down!" Also the water stations near the end were all empty.