Hebgen Lake browns and rainbows are in the Madison River now. Water temperature is around 50 Deg. F. , and when it drops into the mid and lower forties fishing will improve. Go after these fish with streamer patterns. Expect more action on cloudy or stormy days when fish may migrate through shallower water. On bright days they tend to seek the cover of deep holes and runs. Try nymph rigs if you want to get into more juveniles and whitefish. If river otters show up, like they did during our visit, find a new place on the river to fish!