Weak toFightingBugSteelIce ×1.6

Attacker	Type	Moveset	DPS
Lucario	FightingSteel	Force PalmAura SphereLegacy	37.4
Pheromosa	BugFighting	Bug BiteFocus Blast	36.4
Kartana	GrassSteel	Fury CutterSacred Sword	35.6
Terrakion	RockFighting	Double KickSacred SwordLegacy	34.1
Metagross	SteelPsychic	Fury CutterMeteor MashLegacy	34.0
Blaziken	FireFighting	CounterAura Sphere	33.8
Tinkaton	FairySteel	Fairy WindGigaton HammerLegacy	31.8
Conkeldurr	Fighting	Force PalmFocus Blast	31.2
Kyurem	DragonIce	Steel WingGlaciateLegacy	31.0
Keldeo	WaterFighting	Low KickSacred Sword	30.9
Breloom	GrassFighting	Force PalmDynamic Punch	30.8
Urshifu	Fighting	CounterDynamic Punch	30.6

Overcast boosts the Fighting attacks above. Clear and Partly cloudy boost Lileep.

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

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

Questions people ask

What is Lileep weak to in Pokémon GO?

Lileep takes 1.6 times from Fighting, Bug, Steel and Ice.

What's the best counter to Lileep?

Lucario with Force Palm and Aura Sphere, worth 37.4 damage per second against Lileep's own defense. The full ranking is above.