diff -up old/xfce4-weather-plugin-0.8.1/panel-plugin/weather.c new/xfce4-weather-plugin-0.8.1/panel-plugin/weather.c
--- old/xfce4-weather-plugin-0.8.1/panel-plugin/weather.c	2012-08-06 13:13:55.000000000 +0200
+++ new/xfce4-weather-plugin-0.8.1/panel-plugin/weather.c	2012-08-10 20:08:07.381251279 +0200
@@ -537,13 +537,16 @@ update_weatherdata(xfceweather_data *dat
     }
 
     /* update current conditions, icon and labels */
-    if (need_conditions_update(data))
+    if (need_conditions_update(data)) {
+        gtk_scrollbox_clear(GTK_SCROLLBOX(data->scrollbox));
         update_current_conditions(data);
+    }
 
     /* update night time status and icon */
     night_time = is_night_time(data->astrodata);
     if (data->night_time != night_time) {
         data->night_time = night_time;
+        gtk_scrollbox_clear(GTK_SCROLLBOX(data->scrollbox));
         if (data->weatherdata)
             set_icon_current(data);
         else