If you look at the moisture charts, you can see the forecasted amounts.
You should be able to use it, I think…I might have to refer to some of the other resident wiring experts, since this one isn’t technically supported that I can find…but I believe the red would go to S1, and the white would go to 24vac-. Then it would be a matter of telling Rachio what type of sensor is wired in. Hopefully, that sensor works like a traditional rain sensor, and the other sensors don’t cause a problem, but I’m not sure I would hold my breath.