Ariel Winter Finally Covers Up For New Boyfriend

Ariel Winter looks like she's a lot warmer now that she's got herself a new man ... and a new outfit fit for the season.

Ariel was out with BF Levi Meaden, in Sherman Oaks Saturday trying to visit a museum that was closed for the day. She also had more clothes on than usual.

We'll pin it on the cold weather ... but we're guessing her new guy had a chat with her too.