Discharge from Libby Dam is 7000cfs and water temperature in the stilling basin is presently 60 degrees. All things considered the Kootenai is in good shape and fishing pretty well. It’s the height of summer here and with hot, bright, sunny weather, bug activity is concentrated in the early mornings and late evenings. Pmd’s are still popping just before dark and caddis swarms are thick as the sun goes down as well. Throughout the day hoppers and droppers will keep things interesting but big fish are a bit more difficult to find during the heat of the day. Nymphing through fast, deep runs and rapids will bring nicer fish and if you have the inclination, jerking streamers might well thrum up a dandy.
As other options, alpine lakes are in perfect shape. Consider hiking into the backcountry with your float tube and picking off rising cutthroats with ants or small attractors. It’s also cooler up there!