Weak toFlyingRockFire ×1.6

Attacker	Type	Moveset	DPS
Blacephalon	FireGhost	IncinerateMind BlownLegacy	104.0
Reshiram	DragonFire	Fire FangFusion FlareLegacy	86.3
Salamence	DragonFlying	Fire FangFly	79.6
Chandelure	GhostFire	Fire SpinOverheat	79.0
Moltres	FireFlying	Fire SpinFly	78.3
Cinderace	Fire	Fire SpinPyroball	77.9
Enamorus	FairyFlying	Fairy WindFly	77.5
Volcarona	BugFire	Fire SpinOverheat	77.1
Darmanitan	Fire	Fire FangOverheat	76.8
Yveltal	DarkFlying	GustOblivion WingLegacy	76.6
Toucannon	NormalFlying	PeckBeak BlastLegacy	75.8
Glimmora	RockPoison	Rock ThrowMeteor Beam	74.7

Clear boosts the Fire attacks above. Rainy boosts Caterpie.

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

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

Questions people ask

What is Caterpie weak to in Pokémon GO?

Caterpie takes 1.6 times from Flying, Rock and Fire.

What's the best counter to Caterpie?

Blacephalon with Incinerate and Mind Blown, worth 104.0 damage per second against Caterpie's own defense. The full ranking is above.