If you edit the script involved, you'll see there are lines looking for wifi. I did this because I didn't want the script using my data plan to update weather every hour. (But if on wifi, I am fine on doing that. My wifi is unlimited, my data plan is not.)

If you want to avoid the error, you can comment out the line that looks for the wifi connection to look like this:
You'll also note a comment about CHECKINT, noting that it should be changed to 0 if you want to update on 2G/3G every time. That's as designed.

As for the last bit, it does try to get the status from Yahoo and update it. I've noted a couple times that mine has lost that information. I think there may be a parsing issue where they're using their delimited in a quoted string. The script doesn't parse the data quite the same way a web browser does, so it gets confused by that. If I get a chance I'll try to fix it, but it's low priority right now, as I have 50 things going on at once in my life.