Fortunately, there's always the recaps over at Television Without Pity, where they describe last week's episode with the following sentence:
A trio of weather-controlling vixens violates the sanctity
of the Miss Sweet Corn pageant.
Oooooh boy. Methinks that Smallville is edging away from their trademark WB teen angst and into the goofiness of it's 1990's counterpart. All the more appropriate, then, that Dean Cain is guest starring in the next episode.