My husband is running in the Boston Marathon today...please pray!!

Hello Everyone! I'm writing to you from not-so-sunny Massachusetts! The Boston Marathon is today, and my handsome husband is running. This will be his third Marathon, his second attempt at Boston. Last year he passed out from dehydration only 4 miles from the finish, so he has definitely had the agony of defeat!
Please pray for cool weather, not too much sun, and a great race for my husband.
Thanks!!