We are currently investigating the weather app problem. A fix will popup on cydia when the problem is understood.
— pod2g (@pod2g) February 4, 2013
For those seeing the Weather app problem, @planetbeing has started working on a fix.Until then, just don’t go outside.
— MuscleNerd (@MuscleNerd) February 4, 2013
We assume we’ll see a patch pop up in Cydia sometime in the next couple of days that will fix the Weather bug. Until then you can either stay inside, as MuscleNerd suggests, or try restoring and re-jailbreaking.
Obviously, we’ll let you know as soon as this matter gets resolved.