so I just brewed my first batch ever on Sunday. all Is going well I have noticed my frementer stays at between 68-70*f at night and 70-72* during the day. Should I be worried about off flavors from the temp swing and getting to 72* during the day?
no you'll be fine. If active fermentation has begun your liquid temp will most likely be slightly higher than the ambient temp anyway. FWIW, fermentation is exothermic...