I wrote my own weather station software based on the 1 wire network SDK
and hardware from AAG and from Hobby Boards.
Hobby Boards Humidity/Temp
The programs are Windows console applications written in C/C++. The application used to be one big applcation doing the weather sensor reads, the web updates and the scheduling. I have since broken out the big program into the individual programs and schedule the running of the applications via Scheduled Tasks timers.
The data from this server is deposited into a PostgreSQL database .
The UI to the data is through XML and XSL pages. 1 wire weather server UI
The data is also sent to the National Weather Service MADIS system
And to Weather Underground.