Temperatures on race day can vary from 34 degrees at sunrise to 85 degrees by mid-day. The average high temperature in Granby in July is 74 degrees. Because the race is at 9,000-9,700' it is highly recommended that you apply a good amount of Rocky Mountain Sunscreen before the event. August tends to be clear in the mornings with afternoon monsoon clouds, wind and rain common. Be prepared for all types of weather conditions.