Walter Nichols is a weatherman that almost always is wrong about the weather. Because of this, many characters on the series and even his own family poke fun or get mad at him. His main rival is the successful weatherman, Bruce Winchill mentioned in many episodes, who is known for his accurate forecasting and "good-looking hair".

In the Pilot, Walter gets married to Audrey Parker, and thus becomes Drake Parker and Megan Parker step-father. However, both don't show much respect for him, many times refusing calling Walter "dad" and often get annoyed by him. Yet, his biological child Josh, respects him and has repeatedly defended Walter from the insults of Audrey's children, though sometimes he agrees that his father is goody.