Some wet weather with some heavier downpours is possible from the Plains to the Northeast through the weekend, and tropical rains expected along the Gulf Coast and FL.
First, an upper low moves through the Plains today, Midwest on Saturday, then weakening heading into the Northeast on Sunday when a cold front develops. Widespread showers are anticipated with the system with the higher rain totals expected to occur in MN/E IA/N WI tonight and overnight, N IL/S WI Saturday/Saturday afternoon, lower MI/Ohio River Valley/TN Valley Saturday night/overnight and from the Ohio River Valley/TN Valley to the Northeast on Sunday.
Next, a stationary front will be draped from east TX to the Mid Atlantic today and will pretty much stay there through the weekend producing isolated to scattered showers and storms across the Southeast.
Finally, further south tropical rains will be possible along the Gulf Coast and into FL as a trough of low pressure in the Bahamas moves west across FL and into the northern Gulf. This system may become a tropical depression early next week as it moves over the warm northern Gulf waters.