If the mesh filter is gone for whatever reason, and you're blowing the fan on hi for the most part, you could be just blowing water straight off the evaporator and it's getting entrained in the air flow and making it into the car that way. It NORMALLY should just collect up on the mesh and evaporator and drip down into the evap casing and out the flapper. It may be a function of how humid the weather is where you live? If it's been more humid lately, and your evap is chillin' like a ****, it's probably overwhelming the evaporator and condensation is just blowing through. That's my best guess and I'm going with that. Unless there's something blocking the drainage around the evaporator letting condensation building up around it...maybe some crud buildup around it? Just throwing darts again.
Does it do it almost immediately or does it take a while to show up? How much? Does it do it continuously or a one shot deal?
Only been to MN once in my life and it was cold AF in the first part of April. I mean friggin' cold. I was like, WTH? So it's tough for me to think about Minnesota and hot/humid in the same sentence. It's like soup outside here a lot in the southeast, as it is right now, so I know what hot and humid looks like.