diff --git a/index.html b/index.html
index 0127897..dcd683c 100644
--- a/index.html
+++ b/index.html
@@ -1492,6 +1492,8 @@ window.weatherThemes = {
 
         function setDebugUnits(units) {
             window.CONFIG.units = units;
+            // Refresh weather to display new units
+            if (typeof fetchWeather === 'function') fetchWeather();
         }
 
         function updateDebug(t, palette, vantaColors, themeName, realDayProgress) {