So, how did the weather thing work out for President Obama?
According to Obama and the Dem's they were afraid of severe weather during Obama's speech. (Of course, the real truth is that they were more afraid of a partially empty stadium)
So, how was the weather today in Charlotte, NC: At about 4:00 PM they did have a thunderstorm that produced .01 inch amount of rain. http://w1.weather.gov/data/obhistory/KCLT.html
Other than that, no rain, and partly cloudy skies.
During Obama's speech, the weather was partly cloudy skies with a temperature around 74, humidity of 90% and calm winds.
So clearly, it was possible to hold the speech at the stadium, they just chose not to. And we will never know the real reason why the Dem's chose not to use the stadium- the weather, not filling the stadium or the combination of the two.