GC from Columbia, Mo. on 8/21/2007 2:41:03 PM:
Dick,
Check the weather section on the site. The trail is open all year. I live in central Missouri and pretty close to the Katy. I have been on the trail in Dec/Jan in basically shirt sleeve weather, but other times, like last year, we had about a foot and a half of snow after one storm. The best thing to do is check the weather and the forecasts before you go and hope the weather guy is right.