Developer Builds Telegram Voice Bot That Warns Users of Rain Minutes Ahead

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A developer has built Rain Alert, a Telegram bot that monitors minute-by-minute precipitation forecasts and sends spoken voice notes before rain begins. The bot uses OpenWeatherMap's One Call API 4.0 to detect incoming rain with precision down to exact minutes, rather than broad hourly windows. ElevenLabs text-to-speech technology converts the alert message into a natural-sounding voice note delivered via Telegram push notification. The bot tailors its advice based on whether the user is indoors or outdoors, suggesting actions like grabbing an umbrella or closing windows. Built as a solo submission for DEV Community's Weekend Challenge: Passion Edition, the project is containerized with Docker and includes a CI pipeline via GitHub Actions.

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