If the wifi is off, will the system maintain temperature as scheduled?

Great question, ojw05. The Nest Thermostat Gen 4 will continue to follow its set schedule even without Wi-Fi. While you won't be able to control it via the app when offline, you can still adjust the temperature directly on the thermostat itself.. Here’s a link with more information: https://support.google.com/googlenest/answer/9243422?hl=en