Weak toFighting ×1.6

Attacker	Type	Moveset	DPS
Lucario	FightingSteel	Force PalmAura SphereLegacy	108.3
Pheromosa	BugFighting	Low KickFocus Blast	99.1
Terrakion	RockFighting	Double KickSacred SwordLegacy	98.7
Blaziken	FireFighting	CounterAura Sphere	97.9
Kartana	GrassSteel	Fury CutterSacred Sword	93.4
Conkeldurr	Fighting	Force PalmFocus Blast	90.2
Keldeo	WaterFighting	Low KickSacred Sword	89.4
Breloom	GrassFighting	Force PalmDynamic Punch	89.1
Urshifu	Fighting	CounterDynamic Punch	88.4
Eternatus	PoisonDragon	Poison JabDynamax CannonLegacy	87.9
Marshadow	FightingGhost	CounterClose Combat	86.4
Mewtwo	Psychic	CounterFocus BlastLegacy	86.1

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

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

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

Questions people ask

What is Whismur weak to in Pokémon GO?

Whismur takes 1.6 times from Fighting.

What's the best counter to Whismur?

Lucario with Force Palm and Aura Sphere, worth 108.3 damage per second against Whismur's own defense. The full ranking is above.