When I told a friend that I was participating in a sheepdog trial over the Fourth, her response was, "So that's why the forecast is for rain."
She is convinced that sheepdog people only trial in bad weather.
In the past few years, I've worked the dogs in several inches of snow, gusty winds, rain, and 100-degree temperatures. Today, I'm packing two pairs of boots, two rain coats, rain pants, hats, and extra socks as the forecast calls for heavy rain.
I've trialed on some mild, sunny days. It's just that weather-wise, those perfect weather days happen less than the rain, the snow, the heat, the winds.
So, we make the day perfect in other ways -- by being surrounded by Border collies, sheep and friends.