I have 9 zones which water every even day. 2 of the zones (flower beds) also have separate program for odd days. When the forecast predicts rain on an odd day and it does not materialize I run the flower bed program in late evening. The problem is that the full program the next day skips the 2 flower bed zones. Why is this?

Can we also add a rain probability % as the inch/rainfall parameter is not shown in weather forecasts. How does the program know when measuring minimum rain restriction.