diff --git a/modules/default/weather/providers/envcanada.js b/modules/default/weather/providers/envcanada.js
index db0773ea..10db7415 100644
--- a/modules/default/weather/providers/envcanada.js
+++ b/modules/default/weather/providers/envcanada.js
@@ -359,7 +359,7 @@ WeatherProvider.register("envcanada", {
 		var lastDate = moment(baseDate, "YYYYMMDDhhmmss");
 
 		for (var stepDay = nextDay; stepDay < lastDay; stepDay += 2) {
-			var weather = new WeatherObject(this.config.units, this.config.tempUnits, this.config.windUnits);
+			let weather = new WeatherObject(this.config.units, this.config.tempUnits, this.config.windUnits);
 
 			// Add 1 to the date to reflect the current forecast day we are building
 
diff --git a/modules/default/weather/providers/smhi.js b/modules/default/weather/providers/smhi.js
index 1512b067..89c67487 100644
--- a/modules/default/weather/providers/smhi.js
+++ b/modules/default/weather/providers/smhi.js
@@ -216,12 +216,12 @@ WeatherProvider.register("smhi", {
 	 */
 	fillInGaps(data) {
 		let result = [];
-		for (const i = 1; i < data.length; i++) {
+		for (let i = 1; i < data.length; i++) {
 			let to = moment(data[i].validTime);
 			let from = moment(data[i - 1].validTime);
 			let hours = moment.duration(to.diff(from)).asHours();
 			// For each hour add a datapoint but change the validTime
-			for (const j = 0; j < hours; j++) {
+			for (let j = 0; j < hours; j++) {
 				let current = Object.assign({}, data[i]);
 				current.validTime = from.clone().add(j, "hours").toISOString();
 				result.push(current);
diff --git a/modules/default/weather/providers/ukmetofficedatahub.js b/modules/default/weather/providers/ukmetofficedatahub.js
index 41e84880..054dce78 100644
--- a/modules/default/weather/providers/ukmetofficedatahub.js
+++ b/modules/default/weather/providers/ukmetofficedatahub.js
@@ -1,3 +1,5 @@
+/* global WeatherProvider, WeatherObject, SunCalc */
+
 /* Magic Mirror
  * Module: Weather
  *
@@ -125,7 +127,7 @@ WeatherProvider.register("ukmetofficedatahub", {
 		let nowUtc = moment.utc();
 
 		// Find hour that contains the current time
-		for (hour in forecastDataHours) {
+		for (let hour in forecastDataHours) {
 			let forecastTime = moment.utc(forecastDataHours[hour].time);
 			if (nowUtc.isSameOrAfter(forecastTime) && nowUtc.isBefore(moment(forecastTime.add(1, "h")))) {
 				currentWeather.date = forecastTime;
@@ -196,7 +198,7 @@ WeatherProvider.register("ukmetofficedatahub", {
 		let today = moment.utc().startOf("date");
 
 		// Go through each day in the forecasts
-		for (day in forecastDataDays) {
+		for (let day in forecastDataDays) {
 			const forecastWeather = new WeatherObject(this.config.units, this.config.tempUnits, this.config.windUnits, this.config.useKmh);
 
 			// Get date of forecast