This video contains some details about WeatherKit Auth starting at 9:05 - https://developer.apple.com/videos/play/wwdc2022/10003/ The example code in the video omitted the "Bearer " prefix from the Authorization header

It seems like it is a compatibility issue with macOS Sonoma. I have the runtime installed but am unable to use it. ➜ ~ xcrun simctl list runtimes == Runtimes == iOS 14.0 (14.0.1 - 18A394) - com.apple.CoreSimulator.SimRuntime.iOS-14-0 (unavailable, The iOS 14.0 simulator runtime is not supported on hosts after macOS 13.99.0.)