As with most anything it's best to avoid extremes of heat and cold but an inclosed porch would probably be fine. In reality harsh weather you can always bring it in, you won't be sitting out there anyway. The fact that it is dry is good.
As to the LED's. don't worry, the issue with them is that after they are made they slowly absorb a little moisture from the air over time, Then you apply a 600 or 700 degree soldiering iron that moisture can crack the plastic. So unless they see that kind of heat again, they will be fine...John