Weather MCP Server
An MCP server providing worldwide weather via the free Open-Meteo APIs (no API key needed). Runs fully self-contained in Docker as a streamable-HTTP MCP service.
README
Weather MCP Server
An MCP server providing worldwide weather via the free Open-Meteo APIs (no API key needed). Runs fully self-contained in Docker as a streamable-HTTP MCP service.
Tools
| Tool | Description |
|---|---|
get_weather(city, units) |
Current conditions for any city |
get_forecast(city, days, units) |
1–16 day daily forecast |
search_city(city, count) |
Disambiguate cities sharing a name |
Run with Docker
docker compose up -d --build
The MCP endpoint is then at http://localhost:8100/mcp and a liveness probe at http://localhost:8100/health. (Host port defaults to 8100 since 8000 is often taken by other MCP containers; override with MCP_HOST_PORT.)
Check status / logs:
docker compose ps # health column shows "healthy" once up
docker compose logs -f weather-mcp
Stop:
docker compose down
Configuration (environment variables)
| Variable | Default | Notes |
|---|---|---|
MCP_TRANSPORT |
streamable-http in Docker (stdio outside) |
Also supports sse |
MCP_HOST |
0.0.0.0 |
Bind address for HTTP transports |
MCP_PORT |
8000 |
Port inside the container |
MCP_HOST_PORT |
8100 |
Host-side port mapping (compose only): MCP_HOST_PORT=9000 docker compose up -d |
LOG_LEVEL |
INFO |
Standard Python log levels |
Connect an MCP client
Claude Code:
claude mcp add --transport http weather http://localhost:8100/mcp
Claude Desktop (claude_desktop_config.json), via mcp-remote:
{
"mcpServers": {
"weather": {
"command": "npx",
"args": ["-y", "mcp-remote", "http://localhost:8100/mcp"]
}
}
}
Run locally without Docker (stdio)
pip install -r requirements.txt
python weather_server.py
With the default MCP_TRANSPORT=stdio, an MCP client launches the script itself:
{
"mcpServers": {
"weather": {
"command": "python",
"args": ["D:/Local Development/Weather MCP Server/weather_server.py"]
}
}
}
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