Exterior receptacle replacement

[Steelhead]

If I replace an exterior standard receptacle with a GFCI receptacle am I required by code to install an in-use cover as well? If so can you provide a code reference? At the time the standard receptacle was installed GFCI protection and in-use covers were not required.

 

[jumper]

406.9.

Is this resi? If yes, then receptacle must be TR besides WR.