Clouds will increase from west to east across the area today. Look for isolated to widely scattered showers and storms to develop in the afternoon, with the greatest coverage over the mountains. Locally heavy rain and occasional lightning will be the main hazards associated with these storms. Much cooler weather is expected on Tuesday and Wednesday, with widespread rain and thunderstorms likely as monsoon moisture moves into the region along with strong upslope flow over the mountains. There will be an increased risk for localized flash flooding from Tuesday afternoon through Wednesday, especially along and just east of the southern Laramie Range. Highs Wednesday will range from the middle to upper 60s west, to around 80 east.