A cold front will move through the eastern plains of Colorado this evening and bring much colder air to the region. Expect any rain showers to quickly change to snow. Blowing snow can be expected as winds will be very gusty behind the front. Temperatures, after being near 70 degrees in many areas, will fall to the low to mid 20's tonight. Please visit http://www.weather.gov/pub for additional information.   (Please visit http://weather.gov/pub for more information.)