Weather MCP Server is a Model Context Protocol server that provides weather, air quality, and time utilities by consuming data from the Open-Meteo API. It exposes rich current-weather data with metrics such as temperature, humidity, dew point, wind speed/direction/gusts, precipitation, atmospheric pressure, cloud cover, UV index, visibility, and a 'feels like' temperature, and it can also fetch weather for a specified date range with hourly detail. It also returns air quality data for multiple pollutants (PM2.5/PM10, O3, NO2, CO, SO2, ammonia, dust) and related health advisories. Time tools include getting the current date/time in any timezone, converting times between zones, and obtaining timezone information. The server supports three transport modes in one binary: stdio for desktop MCP clients, SSE for web apps (with /sse and /messages/), and streamable-http for modern web usage (single /mcp endpoint). It runs without an API key and uses free Open-Meteo data sources. RESTful endpoints are available via Starlette integration. Docker deployment is supported, and the codebase is organized for easy tool extension.