Bottled Beer Temperature

I bottled my first beer on Sunday and got 48 bottles filled.

Now I have them stored in the boxes in a closet. My question is this: I know that the ideal temperature for storing bottled beer is at 70 deg. F while they carbonate, but is there going to be a problem if the bottles say are at 66-67 deg. F?

I would think that it will just take a little longer to carbonate.

I guess to be safe I should find a warmer spot to move my bottles to.

It will take slightly longer for the bottles to carb but you should get a cleaner taste at that temp.

(from what I understand )

Your totally fine with that temp range. Lower could be slower but not that much. Ultimately the optimum for bottle storage is going to be the range for the yeast you used. In the case of liquid yeasts that's well documented on their sites. For dry, if it can't be found 66-74 would be great. On the lower side of a ferment range is always better than being higher or above range. All will still make beer though.