It's only a slight chance, but it starts in the mid morning in Southeastern Colorado.
By mid day the temperatures will warm enough for the snow to mix with rain. Although there's enough moisture with this weather system to bring about an inch accumulation, the rain will wash down any significant accumulations.
Tuesday will be sunny but chilly with highs in the 40s, then another weather system brings rain and snow to the area on Wednesday. temperatures will warm back up into the 50s by the weekend.