I wouldn't mind seeing hybrid weather conditions, but only the ones that make sense. Ones like:

Windy Hot Spells, Hot Spells during a Dust Storm, Hot Spells with Aurora/Mirages, Hot Spells with Gloomy Mirages, Windy Dust Storms (more windy than normal dust storms?) Dust Storms with Lightning, Gloomy Dust Storms, Windy Rain, Snow and Sleet, Rain and Thunder (like that already exists during double Lightning), Gloomy Rain, Windy Snow (like that already exists during double Ice), Windy and Lightning, Aurora during high winds, Gloomy during high winds, Gloomy Thunder