Cooler and drier air will spread through southern Colorado Sunday...with mostly sunny skies expected around the region. Areas of gusty winds are on tap again on the eastern plains...with little or no thunderstorm development. High temperatures are going to be in the 70s to around 80 degrees in the mountains and southern valleys...with readings in the upper 70s and 80s in the east. The cool down should be short-lived...with much warmer temperatures returning Monday. (Please visit http://weather.gov/pub for more information.)