Overcast is a mystery with very little known about him. His real name is not known, but he does seem to operate out of the Pacific Northwest. His power are almost identical to Forecast.
Overcast can control multiple weather elements, rain, snow, hail and even generate hurricane forces. He has the ability to fly in the hurricanes he can generate. He can control lightning same as Forecast and he is even durable enough he can withstand medium caliber bullets and other blunt force trauma.