Go to the weather institute on route 119 and go to the very top and you ll find him.
U cant
He is to the west at the weather institute.
West of fortree in the weather institute
The weatherman is in Route 119. He is inside the weather institute west of the bridge in Route 119.
The Weather Institute is not in Heart Gold. It is in Ruby, Sapphire, and Emerald.
There is not a weather institute in Pokemon Heartgold, you are thinking of Pokemon ruby, sapphire, and emerald, there is not a weather institute in Pokemon heartgold.
go west of fortree city and then there is going to be a bridge cross it and you will see the weather institute
he is in a cave but you have to get the guy at the weather institute to tell you where he is at
you have to catch or kill kyogre
You get fly when you beat May/Brendan on route 119 after the Weather Institute.
Beat the elite four first.
Somewhere in the sea of Hoenn Region. But you must depend to the weatherman in weather institute to find it. Go talk to him first. If he tells you that there is a heavy rainfall to the specific route, you can possibly find Marine Cave. Go to the route that the weatherman says and look for the dark spot in the sea that you did not see before and that's it.
because in Pokemon emerald u get both groudon and kyogre so da wether keeps on changing