Tempest has been making weather-proof enclosures for fixtures that do not have an IP rating for years.
At LDI Tempest had their new G4 line of data projector enclosures. Designed for projectors of most any size up to and including their G4 Typhoon stackable enclosures, if you need to have a projector outside and protected from the elements, Tempest are the people to talk to.
Tempest also now has their AC Assist coolers supplement outside air with cooled, dehumidified air, guaranteeing safe operation in the very hottest locations. Download the AC Assist Calculator from their website. This handy Excel file that will help you decide when AC Assist may be needed.