Actually fixing the minified files which were missing pretty much everything important.

less/weather-icons.min.less

@@ -20,14 +20,11 @@
  *    "Font Awesome by Dave Gandy - http://fontawesome.io"
  */
 
-
-
-
+@import "weather-icons-core.less";
 @import "weather-icons-variables.less";
 @import "weather-icons-classes.less";
-
-// Include anything you need to make the Weather Icons styled here //
-
-
-
-
+// Mappings to various APIs
+@import "mappings/wi-yahoo.less";
+@import "mappings/wi-forecast-io.less";
+@import "mappings/wi-wmo4680.less";
+@import "mappings/wi-owm.less";

sass/weather-icons.min.scss

@@ -20,5 +20,11 @@
  *    "Font Awesome by Dave Gandy - http://fontawesome.io"
  */
 
-@import "weather-icons-variables.scss";
-@import "weather-icons-classes.scss";
+@import 'weather-icons-core.scss';
+@import 'weather-icons-variables.scss';
+@import 'weather-icons-classes.scss';
+// Mappings to various APIs
+@import "mappings/wi-yahoo.scss";
+@import "mappings/wi-forecast-io.scss";
+@import "mappings/wi-wmo4680.scss";
+@import "mappings/wi-owm.scss";