I pasted the code (without the html tags) into a ubb img tag in my post above. This morning, the temp was accurate, and it showed a forecast of afternoon mist. It's now early afternoon, and the temp is right, but the forecast is blank.
I was really curious to know if their data was coming from my station. With WU and other sites, entering my zip code returns "weather for Wynaco" which means it had to come from my station uploads to WU or CWOP, since there is no Wynaco. I made it up based on the history of the area and to see who snags my data. If it returns as "Auburn" then it comes from somewhere else most likely. (I live in unincorporated King county, but the zip is attached to Auburn, for rural post delivery.)