Friday was the hottest day in Grand Junctionâs recorded history. The high of 107 degrees bested the previous high, 106, set July 21, 2005, according to the weather service. Fortunately, highs are expected to drop a little, but will still be in the low 100s over the weekend with a high of 103 expected today and a high of 102 expected Sunday. According to meteorologist Dennis Phillips, temperatures wonât go back to near normal until the middle of next week. âThen itâll just be a little above normal instead of a lot above normal,â Phillips said. The National Weather Service issued a Heat Advisory for western Colorado and eastern Utah, including Grand Junction, until 8 p.m. Friday.