It's currently still a little bit too cold for me to wet wade, but we're supposed to be getting up into the 70's this weekend and through next week. If those temps hold, the creeks might be warm enough for wet wading by the time you get here as long as you don't get too deep and don't stay in the water too long.
Here's a link
to the water temps on the Little River just below the park boundary in Townsend (click the box at the top of the page and select TW Temperature, water to show that graph). Keep in mind, this is the temp for a larger river at a lower elevation and the smaller creeks higher up will likely be a bit colder.