Holey moley weep holes.
If there is no weep hole, I’m out over my skis recommending you drill a hole in your car door, but I bet a mechanic would do the same thing.
Get the water out now. Not later.
Water intrusion does not improve with time so I do recommend getting it out of there in short order. Water can turn into ice, and ice in the car door can cause a whole other set of issues you don’t want.

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