28 degrees that's hot!! you're a champ for running in that weather:P
It's funny because a couple years ago, I used to go train at the swimming pool and there was a girl who would do laps with earphones on and it was the first time I saw that so it kinda surprised me but then she told me it was a waterproof mp3 player and i thought it was epic to be able to do laps while listening to music!!