I think this site has a nicer presentation of the National Weather Service
data from Spirit of St. Louis Airport, which is right across the river from Lost Valley:
http://www.hamweathe...chive&icao=KSUS
In case you're a purist, and want the original data:
http://www.weather.g...story/KSUS.html
Wunderground with data from Chesterfield Airport, more or less across from Lost Valley / Weldon Spring.
http://www.wundergro...87,-90.65110779