Allow gnome-shell 3.10 again, the issue with this version was fixed sometime ago.

The spinner, shown while searching a location, might work incorrectly, but this should not be a real problem.

data/metadata.json.in

@@ -2,7 +2,7 @@
 "uuid": "@uuid@",
 "name": "OpenWeather",
 "description": "Weather extension to display weather information from https://openweathermap.org/ or https://forecast.io for almost all locations in the world.\nFor openweathermap.org, you can either use the extensions default-key or register at http://openweathermap.org/appid and set the appropriate switch in the preferences dialog to \"off\".\nFor forecast.io you have to register at https://developer.forecast.io/register and get a personal API-key.\n\nSince version 29 this extensions uses coordinates to store the locations and makes the names editable to support multiple weather-providers!\nIf you update from versions prior to 29 to 29 or greater (with forecast.io - support) you have to recreate your locations.",
-"shell-version": [ "3.12", "3.14", "3.16", "3.18", "3.19.1", "3.19.2" ],
+"shell-version": [ "3.10", "3.12", "3.14", "3.16", "3.18", "3.19.1", "3.19.2" ],
 "localedir": "@LOCALEDIR@",
 "url": "@url@",
 "version": "@version@"

data/weather-settings.ui

@@ -1,7 +1,7 @@
 <?xml version="1.0" encoding="UTF-8"?>
-<!-- Generated with glade 3.18.3 -->
+<!-- Generated with glade 3.19.0 -->
 <interface domain="gnome-shell-extension-openweather">
-  <requires lib="gtk+" version="3.12"/>
+  <requires lib="gtk+" version="3.10"/>
   <object class="GtkAdjustment" id="current-refresh-adjustment">
     <property name="lower">10</property>
     <property name="upper">1440</property>