Another Hot Day Monday Before Cooler, Less Humid Weather Arrives in MaineAnother hot and somewhat humid day is expected across Maine Monday, with temperatures climbing into the 80s and heat index values approaching 90 degrees in some inland areas. According to WGME, skies will be partly sunny, although wildfire smoke drifting across Maine and New Hampshire could create some hazy conditions during the afternoon. Most of Maine will stay dry Monday, but an isolated afternoon shower or thunderstorm will be possible across inland and mountainous areas. Tuesday and Wednesday should both feel less humid than the weather Maine experienced late last week and over the weekend. Storms could begin developing along the coastal plain by the middle to late afternoon Wednesday before rain chances increase elsewhere, the news station said.