Weak toFightingRockGrassElectric ×1.6

Attacker	Type	Moveset	DPS
Regieleki	Electric	Lock OnThunder CageLegacy	34.5
Lucario	FightingSteel	Force PalmAura SphereLegacy	30.9
Zeraora	Electric	Volt SwitchPlasma Fists	29.6
Kartana	GrassSteel	Razor LeafLeaf Blade	29.5
Zekrom	DragonElectric	Charge BeamFusion BoltLegacy	28.9
Xurkitree	Electric	Thunder ShockDischarge	28.6
Pheromosa	BugFighting	Low KickFocus Blast	28.2
Terrakion	RockFighting	Double KickSacred SwordLegacy	28.1
Blaziken	FireFighting	CounterAura Sphere	27.9
Breloom	GrassFighting	Force PalmGrass KnotLegacy	26.5
Glimmora	RockPoison	Rock ThrowMeteor Beam	26.1
Rampardos	Rock	Smack DownRock Slide	25.9

Rainy boosts the Electric attacks above. Rainy and Snow boost Arctovish.

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

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

Questions people ask

What is Arctovish weak to in Pokémon GO?

Arctovish takes 1.6 times from Fighting, Rock, Grass and Electric.

What's the best counter to Arctovish?

Regieleki with Lock On and Thunder Cage, worth 34.5 damage per second against Arctovish's own defense. The full ranking is above.