My wife and I went out about 7 pm and did 2 miles, going south from 100th South. The sun wasn't quite down, and there were a lot of clouds in the sky. We were back at our car just as the sun was going behind the Oquirrh mountains. Quite a few walkers and cyclists were out, and a few runners, too. The temperature was in the high 70s (F). I didn't take any rest breaks during my run, including none at the turn-around point.
The following picture of the Jordan River Parkway looking south is near the parking lot at 100th South. The picture was taken from the web.