Ran at lunchtime. Windy from the West! Tough running into the wind on the out, then tough running with the wind on the way back. No wind resistance = no cooling down. When I hit 4.1 miles and stopped, my headband was literally soaked in sweat and sweat was pouring down into my sunglasses and on the ground, being propelled by the wind. It was bizarre! I remember reading race reports of the 2011 Boston Marathon when Ryan Hall had the wind at his back on the return, and him saying how overheated he got because of a lack of wind resistance. I finally experienced that - very weird feeling.