I have lived here for 60 years and the only 2 i have ever seen her are the two i caught after they had killed a bunch of my birds the night before. here is a website that shows the habitat of the weasel in the US.I have never seen a weasel where I live.
https://nhpbs.org/natureworks/longtailedweasel.htm
I dont know if this is your problem preditor or not, but i wish you luck tonight. Hope you get what ever it is.
This is the weasel i caught last fall