Don't use that safer fungicide up until harvest. It's got neem in it. Your buds will taste like ass.

If you want to avoid the rain pummeling your plants, is there any way you can stake a small piece of clear plastic sheeting up over the plants to protect them? I'm not sure what part of NE you're in, but we're supposed to get HEAVY rains in W-MA in the next 48 hours, worse than the ones so far this week.