A pleasant fall weekend is in store for Colorado with mild temperatures and lots of sunshine but Sunday evening winter will be making its first appearance for many locations along the I-25 corridor from Fort Collins to Colorado Springs. A potent winter-like storm will move through overnight Sunday into Monday resulting in accumulating snow and sub freezing temperatures ending the growing season. Precipitation will fall as all snow in the foothills with a brief period of rain expected for the I-25 corridor before changing over to all snow. Snow will fall moderate to heavy at times impacting the Monday morning commute. Snow and blowing snow will continue through the day Monday diminishing Monday evening from north to south. Snow totals will likely end up on the low to mid single digits from Fort Collins through Denver with up to a foot of snow or more in some foothill locations. Lesser amounts of snow south of the Palmer Divide into Colorado Springs but they will get some snow as well. As the storm pulls away Monday evening temperatures will plummet into Tuesday morning. Now is the time to drain the sprinklers and pick what you can out of the garden before damage can be done. Enjoy the first snow of the season!