Rain on buds that are already with mold (budrot) or pm will worsen for sure I'm afraid.
Plants without issues can be "shaken off" after a rain or heavy dew to help minimize issues.
From the picture I saw and the few trees in the background, I would take down what's getting worse and leave the healthiest plants to mature longest.
These are all fungi problems, spores get created and will spread across gardens quite easily left unchecked.
The earlier harvests might have less taste and a more speedy high, budrot harvest is not worth smoking anyway. Hope this advice helps a bit.
Vrede growmies