The likelihood that bailey will be at runnable flows another weekend in the aug/sept time frame (ie above 300 cfs) is pretty good I would think. The predictability is separate issue, and a tough one at that.
In general denver water reacts to weather and water demand and makes daily changes to compensate. Predicting flows is like predicting the weather. The tricky issue is that all it takes is a one set of big thunderstorms to drop over the south platte watershed or over prime irrigation farming land to change either water supply or demand.
Denver water usually gives me a decent idea of what the weekend flows will be by friday PM. Best bet is to keep watching the flows update thread to see when flows come up and are predicted to be in on the weekend.
They are doing some work on cheeseman reservoir which will cause them to draw more water through bailey than normal later in the season when all the rain on the main stem dries up. This should bode well for more releases later this season.
As always, keep and eye on the gauges and be ready to get in the car as soon as you see it come up.