Mars is colder than Earth. On average about minus 80F.
Like Earth, it depends where you are. It’s warmer at the equators and at the north and south poles it’s colder. So it depends where on Mars you’re standing. On a summer day it can get up to 70 F during the day near the equator, but the same night the temperature can plummet about minus 100 F, a 170 degree change in the same day.
The problem is the atmosphere which is one hundred times thinner than Earth so it offers no “blanket effect.”