Weak toFighting ×1.6

Attacker	Type	Moveset	DPS
Lucario	FightingSteel	Force PalmAura SphereLegacy	65.7
Pheromosa	BugFighting	Low KickFocus Blast	60.1
Terrakion	RockFighting	Double KickSacred SwordLegacy	59.8
Blaziken	FireFighting	CounterAura Sphere	59.4
Kartana	GrassSteel	Fury CutterSacred Sword	56.6
Conkeldurr	Fighting	Force PalmFocus Blast	54.7
Keldeo	WaterFighting	Low KickSacred Sword	54.2
Breloom	GrassFighting	Force PalmDynamic Punch	54.0
Urshifu	Fighting	CounterDynamic Punch	53.6
Eternatus	PoisonDragon	Poison JabDynamax CannonLegacy	53.3
Marshadow	FightingGhost	CounterClose Combat	52.4
Mewtwo	Psychic	CounterFocus BlastLegacy	52.2

Overcast boosts the Fighting attacks above. Partly cloudy boosts Lechonk.

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

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

Questions people ask

What is Lechonk weak to in Pokémon GO?

Lechonk takes 1.6 times from Fighting.

What's the best counter to Lechonk?

Lucario with Force Palm and Aura Sphere, worth 65.7 damage per second against Lechonk's own defense. The full ranking is above.