Help needed ,High humidity and heat drying need some advice

Hi guys I’ve just harvested my crop which has come out beyond expectations really pleased with it , but there’s been a heatwave where I am and now thunderstorms are coming so the humidity is also very high . After I harvested I noticed there has been small leak from my tank and the floor and bottom of walks are Saturated so probley adding to the high humidity . The average humidity is are 80 % and with my dehumidifier on it’s only bringing it down to about 70 but raising the temperature a lot , at night time to about 25 degrees celcius then day time with them on prob around the 28 mark . Towards the end of the grow I found a few minor buds with slight mould which I got rid of before hanging up . Question is what do I do ? Really struggling here I’ve got a big oscillating fan on and two monkey fans circulating lots of air not aimed at the buds . Then my outlet fan is running 24/7 . I blocked the inlet up as it’s coming direct from outside . The room is still pulling in some fresh air through the door where seal is not that great and it’s in a outhouse so I thought the air might be less humid coming from there .
I’ve never come across this issue before as only been at it a few years . Any advice would be greatly appreciated really don’t wanna fuck these up as they have all come out so well !