[biotinker]

You want home assistant, as other comments have noted.

I have a reasonably complex set of behavior set up. I live in Bend, Oregon at 4000 feet. This is somewhere with hot sunny days, cold nights, and sometimes a lot of smoke. The effect on the interior of the house based on upcoming weather is highly predictable.

My rules look something like this:

If tomorrow's high temperature is above 85, then as today as soon as outdoor temperature drops below indoor temperature, open all the windows and turn on the attic fan until either interior temp is below 62 or outdoor temp rises above indoor, whichever comes first. Unless the AQI outside goes over 100 for more than 2 minutes, in which case close all the windows and turn on the fan/AC to clean the air. All the while, if the house rises above temperature X, cool it to temperature Y.

Additionally, the upstairs heatpump is located in an uninsulated attic, which in winter means that heating is somewhat inefficient and we want to run it a minimal count of times to avoid warmup periods. So we program in our own hysteresis, so that there's a 6-degree difference between when the heat kicks on, and when it turns off.

No one is going to make a dream thermostat that meets your needs out of the box for you, because no one else has your local needs. The best you can do is give yourself the tools to make your reality how you want it.