Awhile back Tateu took on the free BBWeather app and updated it for newer devices. Over the last day or two there have been some errors cropping up that have caused issues with getting the data from Weather.com. It looks like they changed how their feed works and the app had to be modified to accommodate that.
Tateu has updated the application to v0.85 which fixes this issue. You can pick it up OTA and for desktop install at:
Thanks Tom for pointing out the forum thread