The general weather pattern across Florida and the Gulf of Mexico later this week will feature a weak low pressure area over the Gulf that will be slowly tracking toward Florida. Over the weekend, it will be located just off the Florida coastline. It is a weak and poorly-defined low, which adds some uncertainty to the forecast. But it may be enough of a factor to produce some showers and thunderstorms near the St. Pete area, or maybe just offshore. This far out in the forecast, there is enough uncertainty about their location to warrant a small rain chance. However it doesn't look like they should have much impact if they do occur.
Check back through the week for forecast updates.