Could be some rain this coming weekend, temps in the mid 50’s to lower 60’s lately.
Free flight bikes in Marietta has rentals, they are a trek dealer as well as Santa Cruise. Don’t know which bikes they rent but they are good folks to deal with.
Blankets Creek in Woodstock is a great trail system 20 minutes north of Atlanta, depending on which side of the metro area you will be based on their are great rides within a few minutes of you.
Enjoy