What weather causes Hurricane to become like Thunder is in Rain and Blizzard in Hail?

Question

I'm having to skip some movesets until I know.

Comments

Was it confirmed that Gale/Hurricane has another effect? All I know is the confusion bit.

Answer 1

Actually Now we know that only Rain makes Hurricane(Gale) have 100% accuracy. Also Sun gives it 50% accuracy. Also it can hit Pokemon using Bounce/Fly/Sky-drop. Sources: http://pokemondb.net/move/hurricane and http://bulbapedia.bulbagarden.net/wiki/Hurricane_(move)