Weather god

A weather god is a deity in mythology associated with weather phenomena such as thunder, lightning, rain and wind. They feature commonly in polytheistic religions, frequently as the head of the pantheon.

Storm gods are conceived of as wielding thunder and lightning. They are typically male, powerful and irascible rulers. Notable examples include the Indo-European deities derived from the Proto-Indo-European Dyeus. The Indo-European storm god is sometimes imagined as distinct from the ruling sky god. In these cases, he has names separate from the Dyeus etymon, either Perkwunos or Taran.

...
Wikipedia