Why this mid-June stretch of hot temperatures in Colorado is different Copyright 2021 Scripps Media, Inc. All rights reserved. This material may not be published, broadcast, rewritten, or redistributed. Lance Hernandez/Denver7 and last updated 2021-06-14 19:59:21-04 Temperatures soared to 98 degrees in Denver Monday afternoon - way above the average high of 82 degrees for mid-June, but shy of the record of 102 degrees, set on June 14, 2006. Colorado is on the eastern edge of a huge bubble of hot, dry air that covers all of the southwestern United States. This hot, dry airmass has little thunderstorm potential, just a few hit or miss storms to bring brief relief from the heat.