Cheyenne NWS: Beware of Frostbite, Brutal Cold This Week The weather service is warning people to dress warmly, keep pets indoors, and take precautions against frostbite. The agency posted this statement on its website: ''Here’s an extended outlook for the high/low temperatures across the region. We cover a large area so be sure to know if your city is west or east of I-25. Cold temperatures are here to stay so be sure to wear multiple layers and keep your furry friends indoors. Some cities will experience low wind chill values that could lead to frostbite!"