Thanks @rossko57 for the suggestions. I started down the MAP route last night but then ended up leveraging JS Transformation using this example Javascript transform example with system uptime and a function I found on Stackoverflow
/home/openhabian/conf/transform/caps.js looks like this:
(function capitalize(str){
str = str.toLowerCase();
return str.replace(/([^ -])([^ -]*)/gi,function(v,v1,v2){ return v1.toUpperCase()+v2; });
})(input)
The result:
Item 'LocalWeatherandForecast_WeatherCondition' changed from mist to Mist