The Scottish actor was appearing on British early morning television show GMTV when he surprised resident weathergirl Clare Nasir by taking over the the day's forecast.
Butler attempted to read out the weather report while trying to point at the correct parts of a U.K. map using a prompter, but failed miserably.
When Nasir prompted him to then inform the viewers of the temperature across the country, he began guessing what he thought it would be, saying, "Temperatures will be lower, I'm guessing now. I imagine it will be lower in the north and warmer in the south. Oh, that's a surprise, 19 (degrees celsius in the south) then 21 (degrees celsius) when you go up and 22 (degrees celsius) in the south east coast and yeah... that's the weather for today.".