diff --git a/modules/default/weatherforecast/weatherforecast.js b/modules/default/weatherforecast/weatherforecast.js
index 8846289e..a04fb40d 100644
--- a/modules/default/weatherforecast/weatherforecast.js
+++ b/modules/default/weatherforecast/weatherforecast.js
@@ -294,6 +294,8 @@ Module.register("weatherforecast", {
 			return;
 		}
 
+		params += "&cnt=" + (((this.config.maxNumberOfDays < 1) || (this.config.maxNumberOfDays > 17)) ? 7 : this.config.maxNumberOfDays);
+
 		params += "&units=" + this.config.units;
 		params += "&lang=" + this.config.lang;
 		params += "&APPID=" + this.config.appid;