Rain, warm days, cold nights, back to rain, and then back to warm days. Combine that with river levels being spiked 500 cfs every day for 5 days straight and then dropped 1000 cfs two days later, and you get fish with a serious case of lock jaw. Those sort of inconsistent conditions are a night mare for fishermen looking for trout on the lower Madison, especially when it's the only fishable water in the area.