Bukkit

Its client-side mod which works with RealWeather, it shows you temperature in your GUI and extend freezing effect.

Installation:

1. Download Risugami's ModLoader for mc1.3.2
2. Install ML manualy or via MCPatcher
3. Run the game and then quit.
4. Put this RealWeatherHUD.zip into 'mods' folder in '.minecraft'

HUD works only with HUD version of server plugin! For now you can download it HERE In future all versions will have this support.