Dressing baby

Krys

Ok, please don't laugh. I'm a first time mum...

I want to go out walking with my baby this winter but I'm not sure how I need to dress him. This week it's around -4℃ to -6℃ but I'll probably still be walking in as low as -20℃.

So I put him in his full snow suit or are regular clothes plus jacket and blanket good enough? Does he need a scarf? I feel silly asking but I just want to be sure he'll be warm but not over heated...