From Muppet Wiki

The Weather Guy is a male, humanoid Muppet who appears in Episode 10 of Statler and Waldorf: From the Balcony. In his segment, Weather Guy forecasts the reaction of the movie theater audience while viewing the movie The Weather Man. It is presented in much the same way as a meteorologist would forecast the weather.

The Weather Guy puppet had originated in Muppet Meeting Films, and was recycled as a French critic in Episode 15 of From the Balcony.