Possible alternaria?

No doubt,that thing lives.Remove the whole leaf,and check for more.

looks to be something on the surface vs nute related, so mold or bacteria like modmyplants said. WPM is a different beast. I've seen some black shiny stuff on a leaf before and removing it was the end of it. Outside may be different with less control over climate. cut it out and keep a close eye on your plants going forward. Don't let it grow, next time.. see it and prune it off ASAP. if it's been rainy or high RH, there's not much you can do outside. If not cost-prohibitive, some sort of outdoor fan may help keep things dry. The ones made for that function are typically quite strong and expensive. you see them on golf courses occasionally trying to prevent mold on wet greens.

Lack of phosphorus can bring such patches too. Humidity and bacterias will do rest. If you have heavily flowering girls, better take of those damaged leaves.

Some bacteria or mold for sure, hard to say which one. cut the infected leaves and clean the scissor afterwards!! not easy with bacteria, i know you can use oils and soaps, but your one week from harvest and those soaps/oils aint good for your buds either and dont garuantee its completly gone. Also spores are aggressive i would seperate it asap, you dont want it anywhere near your healthy plants The only way to stop that shit completly is drying your plant out, i would suggest an earlier harvest if you cant controll the infection or its spreading above buds. i would seperate your leaves when you dry them and check them and the buds for spreading while they dry out and cut it off asap.