Weak toFlyingFirePsychicIce ×1.6

Attacker	Type	Moveset	DPS
Blacephalon	FireGhost	IncinerateMind BlownLegacy	58.7
Mewtwo	Psychic	ConfusionPsystrikeLegacy	50.5
Reshiram	DragonFire	Fire FangFusion FlareLegacy	48.7
Salamence	DragonFlying	Fire FangFly	44.9
Chandelure	GhostFire	Fire SpinOverheat	44.6
Moltres	FireFlying	Fire SpinFly	44.2
Cinderace	Fire	Fire SpinPyroball	44.0
Volcarona	BugFire	Fire SpinOverheat	43.5
Darmanitan	Fire	Fire FangOverheat	43.4
Yveltal	DarkFlying	GustOblivion WingLegacy	43.2
Alakazam	Psychic	ConfusionPsychicLegacy	43.1
Toucannon	NormalFlying	PeckBeak BlastLegacy	42.8

Clear boosts the Fire attacks above. Clear and Overcast boost Budew.

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

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

Questions people ask

What is Budew weak to in Pokémon GO?

Budew takes 1.6 times from Flying, Fire, Psychic and Ice.

What's the best counter to Budew?

Blacephalon with Incinerate and Mind Blown, worth 58.7 damage per second against Budew's own defense. The full ranking is above.