Charles Elmore from Lebanon, MO on 8/13/2013 7:28:26 PM:
I'm also riding Clinton to St. Charles on Sept 25-27. This will be my 4th time riding this trail, I use accuweather.com and use the app on my phone while on the trail. Very accurate, with a forecast for all locations along the trail. I check it daily for a couple weeks before the ride to track local trends along the trail. It also gives an accurate wind forecast and an hourly forecast for all locations along the trail. It is already giving a forecast for that week. Good luck & hope to see ya on the trail.