The fixes can be applied easily by updating the evasi0n 6.x untether and uikittools packages in Cydia, reports planetbeing.
Fixes for the long reboot issue and Weather app issue are now available on Cydia with an update to the untether and uikittools.
The team is also planning an update to the Evasi0n utility which will include these fixes.
If you are having issues even after updating these packages it appears that App Sync may be cause. Users who have uninstalled AppSync and rebooted are reporting success.