That picture shows "box sealing class: type 6" and "for indoor and outdoor use".You asked about weather proof, not waterproof. The bottom line on the top section of the spec label: For Indoor and Outdoor Use
I don't see an IP rating. This thread has a picture in Post #1. There is a lot of interesting information about it in the rest of the thread.
US ID.4 included EVSE chargerI was able to snap a picture of the included Level 1 120 volt EV Cord Set at the dealership today. I found https://www.aptiv.com/docs/default-source/user-manual/english-user-manual-ic-cpd.pdf, which appears to be the manual for this device. Although the US English specific labeling on the...www.vwidtalk.com
Hence meaning that you can use it in the rain, as long as it is not continously (semi) submerged in a puddle or something (the wavy lines with the cross lower right).
nema class type 6: NEMA enclosure types - Wikipedia