Weather 8 days out means almost nothing. I wouldn't worry too much about it. What *would* worry me is a week of rain up until next saturday - leaving that stretch muddy. That doesn't look like its gonna happen fortunately.

That pic doesn't seem too bad. I'll be on a comfy shock absorbing roubaix, so as long as my tires don't sink in I'm hopefully good to go. I'll pretend its a stretch of cobbles.