Temperatures will be in the 80's along and east of I-25 today. The San Luis Valley can expect 70's while the mountains will be in the 50's and 60's. Fremont county is under a Red Flag Warning until 8PM tonight. Showers and thunderstorms will be possible across the eastern plains this afternoon.. There is a slight chance some of the thunderstorms could be severe.   (Please visit http://weather.gov/pub for more information.)