{"slug": "weather-data-mcp-server-io-github-dgahagan-weather-mcp-1-22-0", "title": "Weather Data MCP Server (io.github.dgahagan/weather-mcp@1.22.0)", "summary": "Weather Data MCP Server (io.github.dgahagan/weather-mcp) v1.22.0, published to the official MCP registry on 2026-08-18, offers 17 weather tools with no API keys, covering forecasts, alerts, air quality, marine, radar, lightning, and wildfires. The server is distributed as @dangahagan/weather-mcp on npm and has passed a semantic screen by mcpindex, which found no manipulation pattern in its description, though a deterministic conformance probe has not yet been run.", "body_md": "[← Index](/leaderboard)\n\n# Weather Data MCP Server\n\n17 weather tools, no API keys: forecasts, alerts, air quality, marine, radar, lightning, wildfires\n\nThe current version, v1.22.0, was published to the official MCP registry on 2026-08-18. It is distributed as @dangahagan/weather-mcp on npm, filed under Maps & Location by this index. Removals and unreachable sources are measured across every server this index tracks, contract drift across the servers that answer in consecutive snapshots; [the index's current counts](/stats) put this record in context.\n\n## Using Weather Data MCP Server in Claude, Cursor, Gemini CLI, Cline, or Zed?\n\nMCP tool contracts can change remotely with no version bump. The mcpindex gate pins each contract and **HOLDs the call** when it drifts-before your agent acts. Zero credentials. This is not the package install for this server itself (use **Install this server** for that).\n\nRewrites your MCP host config so each server launches behind the gate. Inspect first: curl -fsSL https://mcpindex.ai/install.sh | less\n\n```\nuv tool install mcpindex-gate && mcpindex-config-wire\n```\n\n[method](/methodology)\n\nSemantic screen found no manipulation pattern in the description. Conformance probe not yet run.\n\n`mcpindex.integrity.description`\n\npassINFOevidence“No hidden actions”via static_description\n\n- - Semantic screen only - the deterministic conformance probe has not run on this server\n- - Confidence is reported but not yet calibrated (v1)\n- - Screen reads the tool description, not the live behavior\n- - advisory\n- - registry description only no input schema\n- - The registry listing (version, packages, links) changed after this screen ran - the description we assessed did not\n\nSemantic screen: an LLM judge reads the tool description for hidden instructions (status PARTIAL). A pass means the description is not lying, not that the tool is safe: a high-capability tool with an honest description still warrants caution. The deterministic conformance probe has not been run on this server yet, so the screen here is semantic-only. Posture: advisory. Confidences are reported but not yet calibrated (calibrated=false at v1). Full verdict history is not shown on this page.\n\nOwn this server? [Screen its description →](/screen)\n\n## That verdict was true at screening time (snapshot 2026-08-18).\n\nContracts can change after screening, with no version bump. The gate pins Weather Data MCP Server’s tool contracts on first sight and holds any silent change before your agent acts - the check that keeps being true on Tuesday.\n\n[See your first HOLD in 2 minutes →](/guides/install-the-gate-first-hold)\n\nRelated: [how to trust an MCP server](/guides/how-to-trust-an-mcp-server) · [screen before install](/guides/screen-mcp-server-before-install) · [silent contract drift](/guides/mcp-silent-contract-drift)\n\nPeople vet a server before wiring it in. One line on your project site or docs answers that with an independent record: screening verdict, registry provenance, contract drift history. It stays current as new screens and drift events land.\n\n```\n[Independent trust record for Weather Data MCP Server](https://mcpindex.ai/server/io-github-dgahagan-weather-mcp) - screening verdict, registry provenance, and contract drift monitoring.\nIndependent trust record for Weather Data MCP Server - screening verdict, registry provenance, and contract drift monitoring.\n```\n\nA live verdict badge for your README or listing. It reflects the current screen, links back here, and updates when the verdict does.\n\n```\n[![mcpindex](https://mcpindex.ai/api/v1/badge/io-github-dgahagan-weather-mcp)](https://mcpindex.ai/server/io-github-dgahagan-weather-mcp)\n\"mcpindex\n```\n\n[methodology](/methodology)\n\n[Arc Researchcom.getarcresearch/arc-research](/server/com-getarcresearch-arc-research)\n\nCommodities research MCP: knowledge graph, COT, NG storage/weather, quotes, and stories.\n\n[GribStream Weather MCPcom.gribstream/mcp](/server/com-gribstream-mcp)\n\nNOAA and ECMWF weather forecast MCP for discovery, validation, and GribStream OAuth queries.\n\n[io.github.dharun-rd/weatherio.github.dharun-rd/weather](/server/io-github-dharun-rd-weather)\n\nAn MCP server for weather information.", "url": "https://wpnews.pro/news/weather-data-mcp-server-io-github-dgahagan-weather-mcp-1-22-0", "canonical_source": "https://mcpindex.ai/server/io-github-dgahagan-weather-mcp", "published_at": "2026-08-18 17:26:30+00:00", "updated_at": "2026-08-18 20:43:14.998457+00:00", "lang": "en", "topics": ["ai-tools", "developer-tools"], "entities": ["Weather Data MCP Server", "mcpindex", "@dangahagan/weather-mcp", "io.github.dgahagan/weather-mcp"], "alternates": {"html": "https://wpnews.pro/news/weather-data-mcp-server-io-github-dgahagan-weather-mcp-1-22-0", "markdown": "https://wpnews.pro/news/weather-data-mcp-server-io-github-dgahagan-weather-mcp-1-22-0.md", "text": "https://wpnews.pro/news/weather-data-mcp-server-io-github-dgahagan-weather-mcp-1-22-0.txt", "jsonld": "https://wpnews.pro/news/weather-data-mcp-server-io-github-dgahagan-weather-mcp-1-22-0.jsonld"}}