Weak toGroundGrass ×1.6

Attacker	Type	Moveset	DPS
Kartana	GrassSteel	Razor LeafLeaf Blade	38.9
Groudon	Ground	Mud ShotPrecipice BladesLegacy	34.2
Xurkitree	Electric	Thunder ShockPower Whip	33.3
Roserade	GrassPoison	Magical LeafLeaf Storm	33.1
Eternatus	PoisonDragon	Poison JabDynamax CannonLegacy	33.0
Zarude	DarkGrass	Vine WhipPower Whip	32.5
Excadrill	GroundSteel	Mud SlapEarthquake	32.5
Rillaboom	Grass	Razor LeafFrenzy PlantLegacy	32.1
Mamoswine	IceGround	Mud SlapHigh Horsepower	31.9
Breloom	GrassFighting	Force PalmGrass KnotLegacy	31.5
Meowscarada	GrassDark	LeafageFrenzy PlantLegacy	31.3
Decidueye	GrassGhost	Magical LeafFrenzy PlantLegacy	30.8

Clear boosts the Grass attacks above. Rainy boosts Lanturn.

Level 40, 15 attack IV, costed against Lanturn's own defense and typing, one per evolution family.

Lanturn's moveset, CP and shiny All counters Raid board

Questions people ask

What is Lanturn weak to in Pokémon GO?

Lanturn takes 1.6 times from Ground and Grass.

What's the best counter to Lanturn?

Kartana with Razor Leaf and Leaf Blade, worth 38.9 damage per second against Lanturn's own defense. The full ranking is above.