As I was out after work on Tuesday evening, I ran at lunchtime.
Dressed up in thermals, then the sun came out. Jeez, in the shade it was nice and cool, in the unshaded parts, I was melting, literally.
Was a good run, although my average HR seemed to be higher than usual. I didnt feel like I was pushing particularly but then when I realised I'd cracked 7 miles in just under an hour for the very first time, perhaps I actually was.
The HR report from Strava highlights I was actually pushing...