With an average high of 76°F and a low of 47°F, it generally feels warm during the day and mildly cool with a gentle breeze in the evening. With that in mind, most people would dress in summer attire with a light jacket for the evenings.
Once in town, there is a great bus system, Ubers, and it is generally a walkable area. If staying at the Deer Valley lodge, they also provide a free Uber like service through the Deer Valley app. If you are planning on doing activities farther away, a car may be helpful.
Dressy Casual