I have always enjoyed having the current temperature in the menu bar on my Mac. Even though macOS Sonoma now supports adding a Weather widget of your choice directly to the desktop, I still prefer how a menu bar item is always glanceable and visible regardless of how crowded the desktop is.
For the past few months, I have tried many weather apps to achieve this, including the great Mercury Weather. While most of them worked great, I wanted to take advantage of the fact that we now own an outdoor HomeKit sensor — the Eve Weather — and display the data coming directly from that weather station in the menu bar. I ended up with a neat little solution, using a combination of Shortcuts, SF Symbols, and a couple of useful utilities.