I get similar on my meteor I just leave it and it goes by itself.
Ahhh . . . . but does it return later, like after the ambient temperature drops? If so, I would take it to the dealer for a new unit under warranty, as the moisture inside the glass will disappear - actually vaporize - when the unit heats from being in the sun, but, if these units are sealed, that trapped vapour inside will recondense onto the glass once it cools again.
Moisture in there on a permanent basis may corrode the internals eventually.
Mine has never had a moisture issue in the main display, or the Tripper.