When a Pokemon with Air Lock is in battle, all effects of weather are negated (the weather does not disappear).
When a Pokemon with Air Lock is brought out, the message "The effects of weather disappeared." will be displayed after the Ability is announced.
During heavy rain, extremely harsh sunlight and strong winds, even if a Pokemon is negating the effects of weather with Air Lock, the moves Rain Dance, Sunny Day, Sandstorm, and Hail will fail if used; and the AbilitiesDrizzle, Drought, Sand Stream, and Snow Warning will fail. However, all other effects of these weather conditions are negated by Air Lock.
Outside of battle
Air Lock has no effect outside of battle.
Pokemon Mystery Dungeon
In Pokemon Mystery Dungeon, the current weather will be changed to Clear every 36 turns. Air Lock will take precedence over Drizzle, Drought,Sand Stream, and Snow Warning. Additionally, this Ability prevents the use of the moves Sunny Day, Rain Dance, Hail, and Sandstorm.
Pokemon with Air Lock