Sorry, I mis-stated my original thought. I don't really want to stop the schedule I want to run/enable it.
The idea would be that I would have a "summer pots" schedule that is disabled normally. If the high temp is going to be above 90 tomorrow I would like to enable tomorrow's schedule but only for tomorrow. If the temp will be below 90 I would like to disable the schedule.
Problem seems that there would need to be a "THIS" for tomorrow's high not exceeding 90 as well as the one that triggers if it is above 90. There would also need to be receipes to enable and disable a watering schedule.
I don't see those missing items. But maybe someone can point them out to me.
Maybe the best hope would be to have recipes that enable and disable schedules. Then I could use the current temp > 90 to enable the schedule and current temp < 90 to disable it. Not ideal, since that would require that the temp be over 90 at the time the schedule would run. But putting some tolerance in the numbers might work--over 90 and under 80 might work.