Car Wheels Cover

Car Wheels cover
Lost a wheel cover, is it dangerous to drive the car?

I am usually clueless when it comes To Cars . I have a Nissan Altima 1998 GXE. Yesterday I found that the wheel cover (hubcap) of my right front wheel was lost. Since it is holiday season, no repair shop is open in the small town I live in Western Massachusetts. I know nothing about cars and am not sure if it is dangerous to drive the car like this. Is it a symptom that some inside mechanics in the wheel might have gone wrong, or it is just a cosmetic thing? I have a planned trip coming up in a couple of days, don't want to lose the whole wheel while I am driving to the airport which is about one hour away. Or is there any other concerns that I should know about? I am also planning to park it outdoors at the airport for a couple of weeks. Will the wheel be affected by the weather without the wheel cover? Thanks a lot!

God, I wish I was a mechanic in your town!!
No, a hub cap is basically there for appearance.
DON'T WORRY !!!
It probably came off after hitting a pot hole or making a hard turn.

Enjoy your trip. When you get back, check the local junkyards and see if they have a matching cover. It just snaps onto the wheel.
You can sleep peacefully!

Happy New Year!!!!