Just removed a wood frame window from its tracks so I could clean & paint it, and found that the outside sill beneath the window is rotted to the point where it's the consistency of blue cheese. Before discovering this, I had plenty of time to prime & paint the window and get it back in place. But, this rotted wood discovery may delay things, so I'll have to cover the window area with plastic, due to rain on the way in a couple or three days. I don't get a good feeling about masking tape staying in place when wet. Duct tape - gotta leave a sticky mess on the siding, and if I clean off the goo, I'm guessing I'll then have to clean the whole side of the house. Not an option.
What kind of tape might deal well with moisture for 3-4 days?