Clear Skies is a Dragon Shout in the game The Elder Scrolls V: Skyrim
You learn “Clear Skies” from Arngeir as part of The Throat of the World
Effect
Skyrim itself yields before the Thu'um, as you clear away fog and inclement weather.
Recharge
Level 1 - 5
Level 2 - 10
Level 3 - 15
Dragon Words
Lok - Sky
Vah - Spring
Koor - Summer