Holy Humidity Batman!

ummm... yeah... it's hot.  It happened practically overnight and I was sooooo not ready.  2 days ago was cool, in the 60's.  Today 80 moving on up to the 90's with nearly 40% humidity.  The 10 miles may have gone better had I had more time to acclimate.  But thanks to the drastic change I crumbled mid-run.  My legs were great, the rest of me not so much.  Initially I wanted to run 12.  Nearly 2 miles into the run I decided to cut it down to 10 but I did not run the whole 10 miles.  I was disappointed when I realized just before 5 miles I wouldn't be able to continue unless I started to incorporate walking breaks.  Flashbacks of my experience at  Chicago 07 started happening. And although today was not a marathon,  I didn't want to push when I wasn't ready and could potentially end up hurt.  So I swallowed my pride and for the second 5 I moved to a 5:1 run/walk.  I know if it hadn't gotten so hot and humid as quickly as it did I would have had little to no problem completing the run and possibly even going further.  It will take a little time to get used to the weather and in the meantime I will push myself but need to remember to be smart.  The heat changes everything when it comes to training.