The correct way to parse response from the weather server is to feed it into JSON plugin, but if you only need to retrieve a couple of values, you can use this method:
If this doesn't work in preview mode, open browser console. If you see "Origin localhost is not allowed by Access-Control-Allow-Origin" or similar error there, this is CORS issue, search the forum for solutions.
Dop, right now I am feeling like you are savior god for me. This worked exactly as was my requirement. Thanks a ton ton and tons. God bless you in everyway you wish. You r the best.