Tonight: Light to moderate rain will be widespread across the region with periods of heavy rain possible. Most locations could recieve 1-3 inches of rain with locally higher amounts possible through early Wednesday. Temperatures will fall in to the 50's and 60's.
Wednesday: More rain and clouds for Wednesday, and much cooler. Temperatures will struggle to warm and will only reach the lower 60's in Cheyenne while other locations could see highs in the upper 60's and lower 70's. Overnight, mostly cloudy skies, but with rain showers coming to an end and lows in the mid 50's.
Thursday: It will be a beautiful day as sunny skies dominate the region. High temperatures will climb in to the 70's, but will remain below average. Overnight, temperatures will fall in to the 50's under clear skies.