Yeah I live in Louisiana in southern U.S. and see tons of huskies at the dog park and they're playing as hard as the other dogs and seem very happy so they're probably fine!
I read the double coat protects from the cold AND the heat.
I shave my Aussies top coat every spring just for posterity and he does fine in the summer.
You should get one! Huskys are totally zany wonderful critters!
I live in PR and I know quite a couple husky owners, the key according to them is to just try to keep them hydrated, cool and off hot pavement.