Final answer:
The weather during the evacuation in the book Night is described as cool and windy with a serene and starry night in the high altitude of the Utah uplands.
Step-by-step explanation:
The weather during the evacuation in the book Night is described as cool and windy. In the excerpt from the book, it mentions a cool wind blowing across the oval and the leaves of the oaks and aspens fluttering.
It also suggests that night in the high altitude of the Utah uplands is characterized by silence, darkness, and stars.