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.
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.
Weather was actually Pucci's long lost twin brother, stolen and replaced from his hospital bed by a women disappointed by her own sickly child. He was therefore raised separately from his brother, living an average, somewhat poor life. While he was working part-time in a restaurant, Weather (known by his adopted name, Wes) stopped a thief by throwing cans at him, smashing a window and nailing the thief in the process. The women's purse that he had saved belonged to Perla Pucci, Enrico's younger sister. After this, the two became a couple.
His happiness was short lived however, as Enrico hired a man to split the couple up. Unknown to Pucci, the man was actually a member of the KKK and gathered some friends to attack Weather. Thinking that he had been killed, Weather's girlfriend jumped off a cliff and committed suicide. Unable to live without her, Weather tried to commit suicide several times, only to be saved by his Stand time and time again. Eventually, he tracked Pucci down as the man who had hired his demise. However, during their confrontation, Pucci ripped Weather's memory disc from him and had him arrested.
Personality:
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.
Upon his memories returning, he reveals his true colors. While still retaining his previous passion for his friends, he isn't afraid to flaunt his powers for his own amusement. Smiling when he shocks unsuspecting victims or even skipping in joy amongst his hazardous rainbows, Weather's newer personality frightened Anasui. His melancholy over his memories soon consumes him and drives him to settle things with Pucci.
Stand:
Weather Report ("Weather Forecast" in the dub): 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.
Heavy Weather ("Heavy Forecast" in the dub): When Weather's memories were restored, his Stand regained several abilities previously lost to it. In addition to the abilities stated above, his Stand could alter the atmosphere, and hence the projection of light, creating various rainbows to fill a vicinity. If someone were to graze into the projected light, their bodies would morph into a snail due to subliminal messages, rendering them weak to salt and practically immobile.
