I need to rescind my previous comment that Weather Vane doesn't work. It now appears in my Menu
Bar and works fine. My Menu Bar is crowded, but when I changed the Battery icon to Image Only, Weather Vane appeared and, after I restarted my Mac, works fine. It's pretty handy, actually. I still don't like the idea that it can only be shut off from the Menu Bar, not its icon, apparently. But that's minor, compared to the reservations I expressed before, and now retract.