After another hot and mostly dry day Monday, a cold front will move through the state tonight leading to cooler temperatures and an increased threat for showers and along the frontal boundary Monday night and Tuesday. The best chance for showers and thunderstorms today will be in and around mountains. High temperatures Tuesday will be in the mid to upper 80's across the far east plains, low 80s along I-25 and in the San Luis Valley, and 50's/60's in the mountains. (Please visit http://weather.gov/pub for more information.)