At the south rim the average high is in the upper 50sF and the average low is in the mid 20s. See the link below for a TON of data from last year about that location. I don't think they have reliable weather data like that for the bottom of the canyon, but it will be noticeably warmer at the bottom than at the rim.
Mrs. Lift, also known as Momma, was the main antagonist of Throw Momma from the Train. She was Owen's old mother who mistreated him and his friend Larry. At the end of the film, it was revealed by Owen that she died from natural causes. She was portrayed by Anne Ramsey.
McClure, or baby Jessica as she came to be known to the world, may receive an estimated $1 million or more when she gains access to the trust fund at age 25. McClure is unable to remember how she fell into the well, which was covered by a flower pot in her backyard, or how she got stuck 22 feet below the ground. She gained international attention as rescuers worked to free her.