It very well could be the hottest day of the Summer so far. Temps will reach 100 for many and this, combined with humidity, will make it rough. The air quality is also poor prompting code orange and red days for metropolitan areas. This afternoon scattered storms will likely fire up and could become severe. High winds are the biggest threat.
Tomorrow we will see less humid conditions and little cooler air. Some areas will stay in the upper 80s in the north, and the south will see a bit less humid 90s. The heat engine will get cranked up again this weekend and cause temps again to go to the low and mid 90s Saturday and mid an upper 90s Sunday. Monday should have more storminess and then a real break with people seeing highs in the mid 80s to around 90. I do believe that the temps will again climb for the Holiday weekend.
Tropics continue to be active and I see a very likely scenario that a tropical storm will form down there by Sunday if not sooner. Models are now more favoring the western Gulf for a landfall, but that will become better defined once we really see a system.