@Smartin sorry for the long reply. I haven’t been back here in months. I adjust for the weather by just keeping an eye on how the grass looks and adjusting the schedule. I created an Excel interface using VBA + curl to make it easier to switch up my schedules with the OS API. I keep seasonal settings on another tab, so I can just copy/paste and click to save to the controller. This has served me well for over a year now. It schedules a bit differently than the OS interface does in that the OS interface focuses when you want a program to start, but mine focuses on when you want the watering to be finished. I like to have all my zones done by a certain time in the morning and the sidewalk zones done earlier just to be nice, so it does the math to make sure it finishes exactly 6AM.