September is a wonderful month to fish this part of the state. Trout fishing on the spring creeks has been quite good as of late.  Unseasonably cool evenings have lowered water temperatures and the fish have been active. Hatch wise, be prepared for sporadic caddis throughout the day.  There will also be some midge and some tiny blue-winged olives.  In the latter part of the month, there will be good hatches of B.W.O.'s on drizzly days.  This can provide some of the best dry fly action of the season on vacant streams.
            The cooler temperatures also equate to some excellent terrestrial fishing.  The flying terrestrial insects lose there grace of flight on cooler windy days.  Many will end up in the water available to the trout. Hoppers, crickets, ants, and beetles fished tight to streamside vegetation will take fish.  This is one of the most effective ways to search for fish at this time of year. 
            Look to have some good streamer fishing in the last couple weeks of the season.  Towards the end of the month, fish will begin to color up and become more aggressive.  They tend to be very willing to attack streamer patterns that invade their territory.  Strip streamers quickly through likely holding water and hang on.  Also, don't be afraid to go big.  This is a great time of year to catch large trout.  
 
Fly Patterns:
 

 
Central Wisconsin
 
      Central Wisconsin has been fishing well and will continue to improve throughout the month.  The majority of the action has occurred in the early mornings and in the evenings.  The Tomorrow River has seen a good number of Leukons.  Look for these bugs in the stretches below the town of Amherst.  Terrestrial fishing has been fair in sand country, as well.  Try smaller hoppers and crickets during the low-light hours of the day.  Streamer fishing will also be quite productive this month.  Fish big flies along deep banks in the evenings and after dark. 
      Some of the most consistent fishing in this part of the state has been on the smaller brook trout water.  Unlike some of the larger rivers, many of the smaller creeks are spring-fed and have stayed cool despite the heat and lack of rain.  These creeks are a blast because you can confidently fish dries all day and raise fish.  Most standard attractors and terrestrials work well.
 
Fly Patterns: