Python Flask Weather App – Real-Time City Weather Lookup

A live Python web application built with Flask that allows users to search for current weather conditions in cities around the world. The application integrates with the OpenWeatherMap REST API to retrieve and process real-time weather data, including current conditions, temperature and feels-like temperature. I built this project as my first deployed Python web application after learning Python, taking it beyond command-line exercises into a complete client-to-server application. It gave me practical experience with Flask routing, HTTP requests, REST API integration, JSON response handling, environment variables, server-side rendering with Jinja2, form handling, validation, error handling and production deployment. The application securely loads its API credentials from environment variables, processes external API responses on the Python backend and dynamically renders the results to the user. It also handles unsuccessful city searches with a dedicated error state. Technologies: Python, Flask, OpenWeatherMap API, REST API, Requests, Jinja2, python-dotenv, HTML, CSS, Waitress, Vercel