Swattie87 wrote:
On the stretch you’ll be in it depends. Ole Bull is right on the border of where the Kettle watershed gets too warm in the average Summer. Below there, unless it’s a very cool and wet Summer, is almost always too warm by July. Take the gear along though and take a thermometer. Above Ole Bull and the tribs will probably be ok, unless it’s excessively dry and hot. If it is, you can always fish lower down on Kettle or Pine for WW species.
The Kettle gauge in Cross Fork, a few miles downstream, has a temperature gauge on it for reference. It’ll be a few degrees cooler at Ole Bull, but that ought to give you an idea of what it’s like.