Leaving around 20 of August from Port St Lucie Fl to Phoenix AZ using I 10 most of the way so the gps says, I never travelled that route any interesting sights along the way I am in no rush. Thanks
August heat is not as bad as June heat in Phoenix. Once the Monsoon Season has started it is cooler. BUT now you have to watch out for Thunder Storms and the wind they produce. This is true all the way along I10 in the summer.