Is MG100 IP rated?

The MG100 has no IP rating.

Some customers may have a need for the MG100 main board to be mounted in an IP6x rated enclosure. In this case, Ezurio (formerly Laird Connectivity) has compiled two commercial off-the-shelf (COTS) design recommendations that meet IP6x requirements using readily available components here : Application Note - MG100 IP6x COTS Housing Recommendation