PocketDay changed to a different provider in the last release. It seems a whole lot less accurate than the previous provider.
Last week, I came out of the subway and noticed that it was exceedingly hot. I checked PD and it said that it was only 70F. No way. I did a refresh and it came up with the same thing. A local bank had the temp posted and it was 89.
Right now, I'm looking at PD (says it's 75), my Vista widgets (says its 70), and weather.com (says its 71).