Right now both the Blanco River and the Blanco and Wimberley areas are not bank fish able at this time.
The Blanco State Park is closed until either October or November.
The Cypress Creek in Wimberley is still a mess and is still being cleaned up due the the past major flooding that had occurred.
I would suggest to fish the Marble Falls area around Johnson Park and Lake Marble Falls. You might also check out the Perdernales River in the Stone Wall area.