The temperature is at 34 degrees F each hour it decreases by 2 degrees until 3:00 AM. After 3 AM the temperature increases 3 degrees each hour until 7 AM. The temperature at 7 AM would be 44 degrees F.
It would be 40°F, the temperature drops down 2 degrees in one hour, and theres 3 hours til 3:00am, so it dropped 6° then it would 28°F, then it adds 3° every hour until 7:00am, which is 4 hours, so that would be 28°F+12°F= 40°F