It’s gon’ be hot today (powerful hot). Which means only one thing: it’s time to dress like a viking. Well, maybe a sexy, post-apocalyptic viking with minimal fur, perhaps. But that’s the shtick for this free Vice summer solstice party in the garden of Water Foods in Williamsburg tonight, where there will be free food, free Reyka vodka cocktails, “vodka girls,” and a viking costume contest. Because if there’s anything vikings love, it’s vodka and sweating.