Weak toGroundRockWater ×1.6

Attacker	Type	Moveset	DPS
Inteleon	Water	Water GunHydro CannonLegacy	29.4
Kyogre	Water	WaterfallOrigin PulseLegacy	29.3
Glimmora	RockPoison	Rock ThrowMeteor Beam	28.9
Groudon	Ground	Mud ShotPrecipice BladesLegacy	28.7
Rampardos	Rock	Smack DownRock Slide	28.6
Kingler	Water	BubbleCrabhammer	27.8
Eternatus	PoisonDragon	Poison JabDynamax CannonLegacy	27.7
Greninja	WaterDark	Water ShurikenHydro CannonLegacy	27.7
Gigalith	Rock	Lock OnMeteor BeamLegacy	27.5
Excadrill	GroundSteel	Mud SlapEarthquake	27.2
Rhyperior	GroundRock	Mud SlapRock WreckerLegacy	26.8
Tyrantrum	RockDragon	Rock ThrowMeteor Beam	26.8

Rainy boosts the Water attacks above. Clear boosts Arcanine.

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

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

Questions people ask

What is Arcanine weak to in Pokémon GO?

Arcanine takes 1.6 times from Ground, Rock and Water.

What's the best counter to Arcanine?

Inteleon with Water Gun and Hydro Cannon, worth 29.4 damage per second against Arcanine's own defense. The full ranking is above.