This morning 39f. I worked a slight sweat fighting that 15mpg headwind out of the west. Came upon another biker at the beginning of my commute. Didn't notice him until he was about 30 ft from me. Startled me. He was in dark clothing with no lights. This afternoon was nice ridin' weather with the sun out and all. This evening about 8pm rode home with a tailwind. Thats' always nice cause I get home quicker. Temp down to 36f. Passed another un-lighted biker. Pretty dangerous ridin' in the dark with no lights