@mansmaan  I'm afraid there is not enough information shared yet to know exactly why you are experiencing a connection refused or connection reset issue from your NiFi node.  I was able to use InvokeHTTP with no issue to successfully get a response from the URL you provided.  I was able to view the weather data that was returned in json format. Have you tried to reach wttr.in directly from command line on the NiFi server? This sound like an environmental issue and not a NiFi invokeHTTP issue.    Please help our community grow. If you found any of the suggestions/solutions provided helped you with solving your issue or answering your question, please take a moment to login and click "Accept as Solution" on one or more of them that helped. Thank you, Matt ... View more