The Heat

When it gets hot like this bees will leave the hive and cluster under the front of the bottom board or will be all over the front of the hive.
This is normal. They are cooling off. Some bees are still inside, their numbers are not needed to cover frames to warm brood. The outside air temperatures will do this.
Hot weather can make the bees slip into swarm mode.
When it gets into the 90's bees don't seem to collect much nectar. It is like they are using there energy to cool the colony.
Also the bees can get really cranky when hot.
A safety note. A sweaty bee suit that is dripping wet, bees can sting through a wet suit like there is no suit even there.