Tell ya what, 88 degrees in the morning, with the sun blasting down on you, feels a hell of a lot hotter than 88 degrees in the evening, when the sun is going down.
I got started this morning at around 8:15; it was already in the high 70s and before I got half a mile down the street it was in the 80s and just kept climbing. I took a break at 3.5 miles, sweating like crazy and swearing under my breath about the lack of shady sidewalks around here, and it was up to 90, so I headed home and finished with 5.64 miles.
At 8:30 this evening we decided to walk for yogurt; it was 90 when we left and 88 by the time we were about a mile down the road, and it felt great. If not for the whole night blind thing and my trust factor plummeting after sundown, I might do a lot more walking around 9 pm. I'll walk with the Spouse Thingy then, but not alone...mostly because I can't freaking see where I'm going half the time.
All in all I did 8.45 miles today; not sure what I'll shoot for tomorrow, but I'm getting up early and trying to beat the heat again. I am not positive of my success, though, and suspect I'll be swearing a lot again...