Working for the (cloudy) quad on Regice...

As it stands your team is likely overkill for cloudy weather. In neutral weather you'll probably fall a little short. I would also recomment becoming "friends" with any people willing to short trainer raids since we'll get damage bonuses as the friendship progresses. But here is a video of a regice quad in cloudy weather.

1 trainer 3xLv 40 machamp and 3xlv30ish (max-revives)
1 trainer 1Lv 40 moltres and 5 lv 40 machamp and gets dodge glitched (max revives)
1 trainer uses second team of fire types (moltres, entei, etc)
1 trainer takes 50s to rejoin with second team

still wins with over 30s to go (granted it's the easiest moveset)
https://youtu.be/U-PBugpr-r4

You are good for cloudy weather, it all depend on your partner in raid.

I am not looking for time to win, beat the raid boss is enough for me regardless of time.
So my squad is weaker than you

I've done Blizzard and Earthquake, still looking on FocusBlast one

My main use 6 Machamp : 3 at 40, 2 around 38, one at 35
I am using battle parties so my for my 2nd i use Moltres and Entei at 37/38, 2 Flareon, 1 Charizard Blast Burn at level 35-37, and one flareon at 32

Both battles i just use Moltres and Entei, Flareon just show up before Regice fainted

My recently made 2nd acc at lv 34 just use 6 machamp all at level 36
Second team are 3 machamp, 3 hariyama mostly caught on wild at lv 35

Time to win at arond high 20's

Here the video if you want to see it

https://m.youtube.com/watch?v=ztIV3gw3elY

https://m.youtube.com/watch?v=QWo15FVV2ug

Edit : forgot to add, it is 4 trainer raid..

- same moves but Machamp has more attack 234 vs. 209
- Flareon is ok but Id rather put a Lvl. 30+ Machamp in it. (evolved cloudy weather catch with no investment). This might even be better than your 2 maxed Hariyamas.

7 doesnt have to be the minimum btw. Yesterday we were 6 and the others used auto selected Aggrons and Cloysters and we still did it. 4 good trainers are enough with this friendship bonus thing we might even see 3 man Regice.