We love September! There is so much going on in September... temps cooling off, fish are getting more active, hatches pick up, the streamer bite improves, steelhead are arriving, crowds are dissipating. So much sweetness in September!
Our hometown river, the Spokane, has seen a little improvement in flows from water being released out of Coeur d'Alene Lake. The annual drawdown of the lake adds some life back to the river and helps spread the fish around. Our guides have said the fishing as of late has been improving.
Early September on the Idaho rivers is really just an extension of August for another couple weeks until temps really cool off and we get some mahogany duns and October caddis. All of your "dog-days-of-summer" tactics will still work for now. Pack your terrestrials, small attractors, small chubby/dropper combos, etc. Don't overlook small flies in the calm pools for sippers. Patterns like small ants, griffith's gnat types, and small baetis or parachutes will pick off the finicky late season cutts.
Get out and enjoy this next month and a half! These are truly some of the best fishing weeks ahead of us.