Best of luck up there. I "found" the Methow on a bicycle trip from Seattle round the Cascade Loop out 2, over to the Okanogan, and back to Seattle on 20. I rode up the stretch of 20 to Mazama near mid-summer's day. It was cool, and horses were gamboling through green meadows on either side of the road. There was still snow on Gardner and the peaks along the Cascade Crest in the distance. Bikes are kind of slow, so there was time to drink the scenery in fully.
The Methow is a hard place to visit because you'll need to leave again.
The Methow is a hard place to visit because you'll need to leave again.