Possible Cause of error: Server Certificate for the api call url is old or invalid. For this please open the url of this type
https://api.openweathermap.org/data/2.5/weather?lat=28.6618976&lon=77.2273958&appid=59130320208d7132da721f3cf16b2fd8&lang=en-US
in a new browser window and use the Advanced link (e.g. in Chrome) and add exception for this site.