Weird? it wont start

On my 92 4 cylinder,for some reason it didnt wanna start yeasturday AM and then again today it dosent want to?It's been in the low teens at night and barly getting above freezing during the days.Yesturday i tried to start it 1st thing in the AM and it cranked fine and acted like it wanted to start but just wouldnt fire off!So i drove the other car and was gone for about 2 hours came home and it started no problem! And again today it's doing the same thing as far as not starting. I've never had a problem with it not wanting to start.The antifeeze is new and toppped off the fuel tank is full just filled up lastnight before i parked it,oil is good.Even tho it cranks over fine could the cause be a battery?peace



john