Short run and the cool before summer

It's about 46 degrees f with a little wind and I ran the usual 3 mile route. 

Listened to Train and traffic wasn't really that bad this morning.

Apparently, we're supposed to be hitting a warming trend in Indiana: 76 today, 80 tomorrow and possible mid-80s next week. 
It was a nice cool run this morning.

My calf felt a little tight, but no pain. Hopefully I can call it a knot and not an injury and will have little to do with the marathon.