Here are my rankings of the best attackers against a neutral target (i.e. not considering type advantages and resistances) for every weather currently available in Pokémon GO.

The first table is based on my “Raid Score” metric, where DPS is weighed exponentially and tankiness only proportionally, because raids are mainly a fight against the clock (especially now that damage is not reset when rejoining).

Results are very similar to Pokébattler’s Time To Win rankings, and that’s what I recommend to use in raids when you run out of specialists (which are usually the best).

Rank #	Sunny/Clear	Partly Cloudy	Cloudy	Rain	Snow	Windy	Fog	No weather
1	Moltres FS/OH	Mewtwo any/HB²	Mewtwo Co/FB²	Kyogre WF/HP⁵	Rayquaza DT/OR¹	Rayquaza DT/OR¹	Mewtwo any/SB²	Rayquaza DT/OR¹
2	Entei FS/OH¹²	Rayquaza DT/OR¹	Machamp Co/DP	Raikou TS/WC¹⁵	Mewtwo Co/SB²	Salamence DT/DM	Rayquaza DT/OR¹	Mewtwo Co/SB²
3	Groudon Ms/SB⁶	Salamence DT/DM	Rayquaza DT/OR¹	Rayquaza DT/OR¹	Salamence DT/DM	Dragonite DT/OR⁴	Tyranitar Bi/Cr³	Salamence DT/DM
4	Rayquaza DT/OR¹	Dragonite DT/OR⁴	Salamence DT/DM	Mewtwo Co/SB²	Jirachi Co/DD	Mewtwo Co/Ps²	Salamence DT/DM	Dragonite DT/OR⁴
5	Mewtwo Co/SB²	Kyogre WF/HP⁵	Hariyama Co/DP	Salamence DT/DM or DT/HP	Dragonite DT/OR⁴	Latios DB/DC	Dragonite DT/OR⁴	Kyogre WF/HP⁵
6	Salamence DT/DM	Tyranitar Bi/SE	Dragonite DT/OR⁴	Zapdos CB/Tb	Kyogre WF/Bz or WF/HP⁵	Groudon DT/SB	Kyogre WF/HP⁵	Latios DB/DC
7	Flareon FS/OH	Latios DB/DC	Kyogre WF/HP⁵	Dragonite DT/OR⁴	Ho-Oh SW/FB¹¹	Latias DB/DC	Gengar Hx/SB⁷	Entei FS/OH¹²
8	Dragonite DT/OR⁴	Entei FS/OH¹²	Breloom Co/DP	Gyarados WF/HP	Latios DB/DC	Espeon Co/FS	Latios DB/DC	Moltres FS/OH
9	Kyogre WF/HP⁵	Moltres FS/OH	Blaziken Co/FB	Latios DB/DC	Entei FS/OH¹²	Lugia ES/SA¹⁰	Entei FS/OH¹²	Raikou TS/WC
10	Blaziken FS/OH	Raikou TS/WC	Heracross Co/CC	Entei FS/OH¹²	Moltres FS/OH	Kyogre WF/HP⁵	Moltres FS/OH	Groudon DT/SB⁶

Next, a “pure DPS” ranking. Here it’s just about the (neutral-type) damage dealt while the attacker is alive, independently of whether it lasts 5 seconds or 2 minutes.

Rank #	Sunny/Clear	Partly Cloudy	Cloudy	Rain	Snow	Windy	Fog	No weather
1	Moltres FS/OH	Mewtwo any/HB²	Breloom Co/DP	Kyogre WF/HP⁵	Rayquaza DT/OR¹	Rayquaza DT/OR¹	Mewtwo any/SB²	Rayquaza DT/OR¹
2	Flareon FS/OH	Rayquaza DT/OR¹	Machamp Co/DP	Raikou TS/WC¹⁵	Salamence DT/DM	Salamence DT/DM	Gengar Hx/SB⁷	Salamence DT/DM
3	Entei FS/OH¹²	Salamence DT/DM	Mewtwo Co/FB²	Rayquaza DT/OR¹	Mewtwo Co/SB²	Dragonite DT/OR⁴	Rayquaza DT/OR¹	Mewtwo Co/SB²
4	Rayquaza DT/OR¹	Dragonite DT/OR⁴	Rayquaza DT/OR¹	Salamence DT/DM or DT/HP	Dragonite DT/OR⁴	Mewtwo Co/Ps²	Salamence DT/DM	Dragonite DT/OR⁴
5	Blaziken FS/OH	Moltres FS/OH	Blaziken Co/FB	Mewtwo Co/SB²	Jirachi Co/DD	Latios DB/DC	Alakazam any/SB	Moltres FS/OH
6	Salamence DT/DM	Gengar Hx/SB⁷	Salamence DT/DM	Zapdos CB/Tb	Jynx FB/Av¹⁴	Alakazam Co/FS	Banette SC/SB	Gengar Hx/SB⁷
7	Mewtwo Co/SB²	Latios DB/DC	Hariyama Co/DP	Dragonite DT/OR⁴	Moltres FS/OH	Espeon Co/FS	Tyranitar Bi/Cr³	Latios DB/DC
8	Groudon Ms/SB⁶	Kyogre WF/HP⁵	Gengar Hx/Sb⁷	Gyarados WF/HP	Gengar Hx/SB⁷	Groudon DT/SB	Houndoom Sn/FP	Kyogre WF/HP⁵
9	Charizard FS/OH	Tyranitar Bi/SE	Heracross Co/CC	Jolteon TS/Tb	Kyogre WF/Bz or WF/HP⁵	Jirachi Co/DD	Absol Sn/DP	Alakazam Co/SB⁸
10	Dragonite DT/OR⁴	Alakazam Co/SB⁸	Dragonite DT/OR⁴	Pinsir BB/XS¹³	Latios DB/DC	Moltres FS/OH	Moltres FS/OH	Breloom Co/DP

Then the “Overall” ranking, best used for taking down gyms efficiently in both potions/revives and time. In gyms, unlike in raids, there is (almost) no risk of timeout, so DPS and TDO can be weighed equally.

I don’t recommend to use this ranking for raids, unless you really have a big problem with getting revives or potions, or unless you only want to choose a final anchor to get off some final damage instead of having the whole team faint (and therefore wasting time in rejoining).

Rank #	Sunny/Clear	Partly Cloudy	Cloudy	Rain	Snow	Windy	Fog	No weather
1	Entei FS/OH¹²	Blissey £/HB⁹	Mewtwo Co/FB²	Kyogre WF/HP⁵	Kyogre WF/Bz or WF/HP⁵	Rayquaza DT/OR¹	Mewtwo any/SB²	Kyogre WF/HP⁵
2	Groudon Ms/SB⁶	Mewtwo any/HB²	Kyogre WF/HP⁵	Raikou TS/WC¹⁵	Jirachi Co/DD	Dragonite DT/OR⁴	Tyranitar Bi/Cr³	Mewtwo Co/SB²
3	Moltres FS/OH	Kyogre WF/HP⁵	Rayquaza DT/OR¹	Mewtwo Co/SB²	Ho-Oh SW/FB¹¹	Salamence DT/DM	Kyogre WF/HP⁵	Rayquaza DT/OR¹
4	Kyogre WF/HP⁵	Snorlax Li/HB	Dragonite DT/OR⁴	Rayquaza DT/OR¹	Mewtwo Co/SB²	Lugia ES/SA¹⁰	Rayquaza DT/OR¹	Dragonite DT/OR⁴
5	Mewtwo Co/SB²	Rayquaza DT/OR¹	Machamp Co/DP	Gyarados WF/HP	Rayquaza DT/OR¹	Mewtwo Co/Ps²	Dragonite DT/OR⁴	Salamence DT/DM
6	Ho-Oh SW/FB¹¹	Tyranitar Bi/SE	Salamence DT/DM	Dragonite DT/OR⁴	Dragonite DT/OR⁴	Latios DB/DC	Salamence DT/DM	Groudon DT/SB⁶
7	Rayquaza DT/OR¹	Dragonite DT/OR⁴	Hariyama Co/DP	Zapdos CB/Tb	Salamence DT/DM	Groudon DT/SB	Snorlax Li/HB	Entei FS/OH¹²
8	Dragonite DT/OR⁴	Salamence DT/DM	Groudon DT/SB⁶	Salamence DT/DM or DT/HP	Groudon DT/SB⁶	Kyogre WF/HP⁵	Groudon DT/SB⁶	Blissey £/HB⁹
9	Latios DB/SB	Groudon DT/SB⁶	Entei FS/OH¹²	Vaporeon WG/HP	Entei FS/OH¹²	Ho-Oh ES/BB	Entei FS/OH¹²	Lugia ES/SA¹⁰
10	Salamence DT/DM	Entei FS/OH¹²	Blissey £/HB⁹	Groudon DT/SB⁶	Blissey £/HB⁹	Jirachi Co/DD	Blissey £/HB⁹	Ho-Oh SW/FB¹¹

Finally, a “pure TDO” ranking, i.e. these are the Pokémon that do the most damage per revive. Most of them are slow, but very tanky.

Only recommended as attackers for gyms and if you have more time than revives/potions. DON’T even think about using this ranking for raids (OK maybe for Marowak you can.)

Rank #	Sunny/Clear	Partly Cloudy	Cloudy	Rain	Snow	Windy	Fog	No weather
1	Blissey £/HB⁹	Blissey £/HB⁹	Blissey £/HB⁹	Blissey £/HB⁹	Blissey £/HB⁹	Blissey £/HB⁹	Blissey £/HB⁹	Blissey £/HB⁹
2	Lugia ES/SA¹⁰	Snorlax Li/HB	Lugia ES/SA¹⁰	Kyogre WF/HP⁵	Lugia ES/SA¹⁰	Lugia ES/SA¹⁰	Lugia ES/SA¹⁰	Lugia ES/SA¹⁰
3	Groudon Ms/SB	Lugia ES/SA¹⁰	Snorlax Li/HB	Lugia ES/any	Ho-Oh SW/FB¹¹	Ho-Oh ES/BB	Snorlax Li/HB	Snorlax Li/HB
4	Entei FS/OH¹²	Regirock RT/SE	Kyogre WF/HP⁵	Snorlax Li/HB	Kyogre WF/Bz or WF/HP⁵	Dragonite DT/OR⁴	Kyogre WF/HP⁵	Kyogre WF/HP⁵
5	Ho-Oh SW/FB¹¹	Kyogre WF/HP⁵	Ho-Oh SW/FB¹¹	Raikou TS/WC¹⁵	Snorlax Li/HB	Groudon DT/SB	Tyranitar Bi/Cr³	Ho-Oh SW/FB¹¹
6	Snorlax Li/HB	Slaking Y/HB	Slaking Y/PR	Ho-Oh SW/FB¹¹	Regice FB/Bz	Snorlax Li/HB	Mewtwo any/SB²	Groudon DT/SB⁶
7	Kyogre WF/HP⁵	Ho-Oh SW/FB¹¹	Groudon DT/SB⁶	Vaporeon WG/HP	Jirachi Co/DD	Kyogre WF/HP⁵	Ho-Oh SW/FB¹¹	Entei FS/OH¹²
8	Moltres FS/OH	Groudon DT/SB⁶	Regirock RT/FB	Groudon DT/SB⁶	Groudon DT/SB⁶	Rayquaza DT/OR¹	Groudon DT/SB⁶	Mewtwo Co/SB²
9	Tyranitar Bi/FB	Tyranitar Bi/SE	Mewtwo Co/FB²	Milotic WF/Su	Entei FS/OH¹²	Mewtwo Co/Ps²	Entei FS/OH¹²	Jirachi Co/DD
10	Mewtwo Co/SB²	Mewtwo any/HB²	Entei FS/OH¹²	Regirock RT/ZC	Aggron IT/HS	Lati@s DB/DC	Jirachi Co/DD	Regirock RT/SE

Glossary of moves abbreviations:

Fast moves: AS = Air Slash, BB = Bug Bite, Bi = Bite, BS = Bullet Seed, Bu = Bubble, CB = Charge Beam, Co = Counter/Confusion, DB = Dragon Breath, DT = Dragon Tail, ES = Extrasensory, FB = Frost Breath, FC = Fury Cutter, FF = Fire Fang, FS = Fire Spin, Hx = Hex, IT = Iron Tail, £ = Pound, Li = Lick, Ms = Mud Shot, PC = Psycho Cut, RT = Rock Throw, SC = Shadow Claw, Sn = Snarl, SP = Sucker Punch, SW = Steel Wing, TS = Thunder Shock, VS = Volt Switch, WF = Waterfall, WG = Water Gun, Y = Yawn
Charge moves: AA = Aerial Ace, Av = Avalanche, BB = Brave Bird, Bz = Blizzard, CC = Close Combat, Cr = Crunch, DC = Dragon Claw, DD = Doom Desire, DM = Draco Meteor, DP = Dynamic Punch/Dark Pulse, EQ = Earthquake, FB = Fire Blast/Focus Blast, FP = Foul Play, FS = Future Sight, HB = Hyper Beam, HP = Hydro Pump, HS = Heavy Slam, Hu = Hurricane, OH = Overheat, OR = Outrage, PR = Play Rough, Ps = Psychic, SA = Sky Attack, SB = Solar Beam/Shadow Ball, Sb = Sludge Bomb, SE = Stone Edge, Su = Surf, Tb = Thunderbolt, WC = Wild Charge, XS = X-Scissor, ZC = Zap Cannon

All calculations have been done with my Choose Your Attackers v12.0 spreadsheet, no dodging.

Footnotes:

¹ Rayquaza: AS/OR and DT/AA are not optimal but OK.

² Mewtwo: any moveset except for PC/Ps is good; in Windy weather, any moveset is good.

³ Tyranitar: Bi/SE is not optimal but OK.

⁴ Dragonite: DB/OR, DT/DC, DB/DC are not optimal but OK. DT/HB is good in Partly Cloudy weather, SW/OR is good in Snow, DT/Hu is good in Windy weather.

⁵ Kyogre: Blizzard is OK (excellent in Snow); in Rain, Thunder is OK too. Hydro Pump is still the best move.

⁶ Groudon: Ms/SB and DT/SB have similar performance. Ms/EQ is good too in Sunny/Clear weather, and DT/EQ is good too in Windy weather.

⁷ Gengar: legacy SC/SB and SC/Sb are even better than the respective Hex movesets. SP/SB and SP/Sb are slightly worse but still good.

⁸ Alakazam: Co/FS is almost as good.

⁹ Blissey: keep in mind that its neutral DPS is only 51% that of Rayquaza (60% in Partly Cloudy). However she’s the queen of TDO, which is good to take down gyms (slowly), but of course not for raids.

¹⁰ Lugia: ES/FS is almost as good.

¹¹ Ho-Oh: SW/SB is almost as good.

¹² Entei: FF/OH is not optimal but OK.

¹³ Pinsir: FC/XS is almost as good.

¹⁴ Jynx: Co/Av is not optimal but OK.

¹⁵ Raikou: TS/Tb and VS/WC are not optimal but OK.

EDIT: Minor Text Fixes™.

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