Ran 3.5 miles @ 8:04/mile pace.
AHR/MHR - 155/170
90 degrees, humid, hazy.
Run cut short after the heat sapped my strength. Not sure if it was that so much as the haze. Perhaps it's psychosomatic, but I was aware of a poor air quality alert prior to the run and I thought my breathing was labored. Ah well, no biggie. Cold front is on the way and it should be bringing some cool thunderstorms with it.
On a nice note, after the run and a cold shower, I hit the beach and jumped in the ocean to cool off some more. Now that felt good.