Should Saturdays Really Be Sundays?

I don't know if anyone else has noticed, but every single Saturday of the semester has been beautiful. It doesn't matter what the rest of the week has been like or will be, Saturday is always sunny and warm. Take a look at this week's forecast, for example.

I have come to the conclusion that it could tornado on Thursday, blizzard on Friday, but come Saturday the sun will be shining and the world will be still just in time for six hours of class inside of a building set to an automatic 30 degrees.