Enjoy one more day of upper 60s, because another cool and wet weather pattern is setting up for the second half of the week.Warmer than normal weather will stick around through Wednesday afternoon, with temperatures reaching the upper 60s. High temperatures on Wednesday will be approximately 5-10 degrees above average.The above average temperatures combined with the gusty southerly winds may spark off a few showers and possibly an isolated thunderstorm during the afternoon hours. These gusty winds will be blowing in the mountains as well but temperatures will be cold enough to support a rain/snow mix instead.For the Front Range, colder and wetter weather is on the way for Thursday. This system is expected to intensify just to the north and west of Colorado before moving through the region late Wednesday through Saturday.The first change that youll likely notice is the cooler weather.Temperatures will drop from 70 degrees to the low 50s between Wednesday and Thursday. Rain and snow showers are likely with this system, but the exact path of the storm will greatly influence weather along the Front Range.A Winter Storm Warning is in effect for Tuesday night through Thursday morning for the San Juan Mountains. As much as 8-16" of snow could fall through the period. Strong, gusty winds will also be blowing the snow around which will reduce visibalities. Travel through Red Mountain Pass and Wolf Creek Pass will likely be difficult.Also, a Winter Storm Watch is in effect for Wednesday afternoon through Thursday afternoon for most of the Northern and Central Mountains. As much as a foot of snow is possible after all is set and done.The forecast is subject to change as forecasting models fine-tune the details with this approaching system. Stay tuned for the latest updates on TheDenverChannel and Denvers 7.If you would like to learn much more about our often wild and crazy spring weather, check out a copy of my book, THE COLORADO WEATHER ALMANAC. The book is available at all local bookstores, or you can order it on-line from this website MIKE'S COLORADO WEATHER ALMANAC!