I've noticed that the rain makes the dogs really active, I'm not sure if they are excited about being out in the rain, or have more energy from being cooped up more inside. Harper is racing down the trail here followed by Bella, Laila is sniffing in the bushes behind them. Bella is wearing an awesome raincoat make by Teckelklub. I highly recommend them! All my dogs wear them too, and it makes a huge difference on a rainy day, the dogs that wear raincoats are nice and dry after walks.
Here is the entire group from Thursday's walk. Sage is the aussie in back, the black lab mix is Fletch, to his right is Laila, with Harper the golden in the lead and Bella in her green coat exploring the trail. 
Here is a snapshot from Wednesday's walk. Kiko (left) seems to be checking the weather situation, while Missy (center) and Max are ready to go! It was sprinkling just a bit when we started, but we made a run for it when it starting pouring rain. We got to the car just as the thunder and lightening started!
Here's a view of the trail after we were safely in the car-very wet and rainy!
