All users who run the jailbreak Firmware 3.0 and who love to change the theme on the phone will have surely noticed that the weather icon does not changed. David Ashman has recently released an update of its WeatherIconche comes to version 2.1.2.

Simply install it and you can see the weather icon on the theme in use (set by Winterboard). This latest version does not cause respiring problems nor leads to Safe Mode and you can install it via the repository of David: http://david.ashman.com/apt/