First introduced as suffering from amnesia, Weather aided Jolyne at Emporio's request. Distant and a little naive, he continues to assist Jolyne and her companions from there after. He serves as valuable back up for F.F., causing the sky to rain if she is too dehydrated. After Pucci absorbs Dio's bone, he mysteriously gains a Joestar birthmark. He joins Anasui -at the latter's insistence- in their search for Jolyne. Little is known about him as the story progresses until one of Dio's sons, Donatello Versace, stole his memories from Pucci's jacket. He regains his memories when Donatello's stand, Underworld, returns the disc to him.
When deprived from his memories, Weather was mellow and eccentric. He would boldly stand a few inches next to Jolyne's face to get her attention rather than call her name. He was trustworthy and compassionate, rescuing those in need without caring for his own safety. Unless someone he knew was in danger, Weather hardly panicked.
Weather Report (ウェザー・リポート wezā ripōto): a versatile Stand that has control over weather. His stand is usually in a cloud humanoid shape. His stand can quickly formulate these vapors to stop or distort his enemies attacks. He can also use his Stand to bring otherwise unlikely elements of the weather to rain down on enemies. In such a case, he used poisonous frogs to protect Jolyne against Pucci. He can also instantly freeze liquids at the single touch.