A ridge of high pressure is dominate weather pattern and as such the Western Slope can expect a clearing sky, dry conditions and slowly increasing temperatures. This pattern should remain in place through the Winter Solstice on Tuesday and could even produce some of the more mild temperatures into the middle of next week. No records are expected, but temperatures will be running about 5 degrees warmer than they should. The average high temperature for GJ and Montrose this time of the year is 38F for both locations.
There is a very unsettled pattern developing for the west coast late next week and several feet of snow is expected for multiple days/possibly through the end of the 2021 for the PACNW and portions of California. This is not a guarantee that the storms will strike Colorado, but it represents a pretty good chance for snow on Christmas. An almost guarantee in the mountain zones. The trend in a La Nina pattern is to be warmer and drier and that is what we will be battling against. Also under this pattern near average snowfall can occur and that is what we could be looking at late next week.