Ran a frigidly cold 45 minutes this morning. Low to mid 30's. I jogged around West Valley College eventually catching up with some friends who were as frozen as I was. I had all the hi-tech gear on but frankly I could have used a plain old cotton sweat top as well.
My plan is to do a 90% tempo run tomorrow but if it this cold I may dump the workout and run easy. That'll be a game day decision.