Lower humidity and drier weather will arrive in the Tennessee Valley Tuesday night. The leftover showers will fade to an end between 8 PM and 9 PM, though a stray shower can't be ruled out through midnight.
A weak cold front tracking toward Alabama from the north will clear through the Tennessee Valley by early Wednesday morning. Colder air usually follows a cold front. We will not feel much chill with this cold front since we are in the heart of summer. Instead, the humidity will drop. The drop will be noticeable in the form of air that feels less muggy and less heavy and perhaps a bit more crisp. Air with lower humidity tends to change temperature faster than air with higher humidity. As a result, morning temperatures will drop into the upper 60 Wednesday through Friday.
The lower humidity will also mean limited showers. A lone, stray shower is possible both Wednesday and Thursday. While that stray shower is possible, it is unlikely.
Humidity and heavy thunderstorms will return to the Tennessee Valley on Friday.