Weak toFighting ×1.6

Attacker	Type	Moveset	DPS
Lucario	FightingSteel	Force PalmAura SphereLegacy	29.5
Pheromosa	BugFighting	Low KickFocus Blast	27.0
Terrakion	RockFighting	Double KickSacred SwordLegacy	26.9
Blaziken	FireFighting	CounterAura Sphere	26.7
Kartana	GrassSteel	Fury CutterSacred Sword	25.5
Conkeldurr	Fighting	Force PalmFocus Blast	24.6
Keldeo	WaterFighting	Low KickSacred Sword	24.4
Breloom	GrassFighting	Force PalmDynamic Punch	24.3
Urshifu	Fighting	CounterDynamic Punch	24.1
Eternatus	PoisonDragon	Poison JabDynamax CannonLegacy	24.0
Marshadow	FightingGhost	CounterClose Combat	23.6
Mewtwo	Psychic	CounterFocus BlastLegacy	23.5

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

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

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

Questions people ask

What is Lopunny weak to in Pokémon GO?

Lopunny takes 1.6 times from Fighting.

What's the best counter to Lopunny?

Lucario with Force Palm and Aura Sphere, worth 29.5 damage per second against Lopunny's own defense. The full ranking is above.