Driftless Area
Rating: 2, temperature: 48 ℉, condition: Heavy Rain.
Fishing is still OK in Iowa, and the cold front should make it a bit less crowded...With the colder weather the fish will be active later in the day. No reason to get out there too early.
Subsurface fishing on tiny nymphs and leeches slowly twitched through the deeper pools is key until later in the afternoon when a few olives and midges can get fish rising.