weather-forecasts

Weather Simplified

Real-time US weather data from the National Weather Service (NOAA) — current conditions, forecasts, alerts, tropical weather, and severe weather — available as tools for Claude via the Model Context Protocol.

Installation

Add the marketplace, then install the plugins you need:

/plugin marketplace add klietzau280/claude-plugins-weather-simplified

/plugin install weather-forecasts@weather-simplified    # Forecasts & alerts
/plugin install weather-tropical@weather-simplified      # Hurricane tracking
/plugin install weather-severe@weather-simplified        # Tornado watches & SPC outlooks

Or browse all three in /plugin > Discover.

What It Does

Three plugins, each focused on a different domain of weather data. Install one, two, or all three.

weather-forecasts

Current conditions, forecasts, and alerts for any US ZIP code.

Skill	Tool	Description
/current-weather	get_current_conditions	Temperature, wind, humidity, conditions
/forecast	get_forecast	Today & tonight forecast with sunrise/sunset
/extended-forecast	get_extended_forecast	4-day / 8-period detailed outlook
/hourly-forecast	get_hourly_forecast	Hour-by-hour forecast, up to 156 hours
/weather-alerts	get_weather_alerts	Active NWS warnings and advisories

weather-tropical

Atlantic and Pacific tropical weather from the National Hurricane Center.

Skill	Tool	Description
/tropical-weather	get_tropical_weather	All tropical data combined
	get_tropical_atlantic	Atlantic basin storms, formation chances, outlooks
	get_tropical_pacific	Eastern Pacific basin storms, formation chances, outlooks

weather-severe

Severe weather data from the Storm Prediction Center.

Skill	Tool	Description
/severe-weather	get_severe_weather	All severe data combined
	get_watches	Active tornado and severe thunderstorm watches
	get_convective_outlooks	SPC Day 1-8 categorical risk outlooks
	get_mesoscale_discussions	Real-time SPC severe weather analysis

Example Prompts

Ask Claude naturally — it will pick the right tool:

• "What's the weather like in Denver?" — current conditions
• "Will it rain in NYC this week?" — extended forecast
• "Hourly forecast for the next 12 hours in Miami" — hourly forecast
• "Any weather warnings near zip code 73301?" — weather alerts
• "Any tropical storms forming in the Atlantic?" — tropical weather
• "Are there any active tornado watches?" — severe weather

Requirements

• Claude Code with plugin support
• US locations only (5-digit ZIP codes)
• No API key, no authentication, no account required

Data Sources

All data is sourced from official US government APIs:

• api.weather.gov — Current conditions, forecasts, alerts
• National Hurricane Center — Tropical weather
• Storm Prediction Center — Severe weather

Architecture

Claude Code
    |
    v
+--------------------+
| Plugin Skills      |   /current-weather, /forecast, /tropical-weather, ...
+--------+-----------+
         | MCP tool call
         v
+--------------------+
| MCP Server (HTTP)  |   weather-simplified-graphql.azurewebsites.net/mcp
| 12 tools           |
+--------+-----------+
         |
         v
+--------------------+
| NOAA / NWS APIs    |   api.weather.gov, NHC, SPC
+--------------------+

Alternative Setup (Claude Desktop)

You can also use the MCP server directly without the plugin marketplace.

Remote (no install) — add to claude_desktop_config.json:

{
  "mcpServers": {
    "weather": {
      "type": "streamable-http",
      "url": "https://weather-simplified-graphql.azurewebsites.net/mcp"
    }
  }
}

Local (stdio):

git clone https://github.com/klietzau280/weather-simplified-graphql.git
cd weather-simplified-graphql
npm install && npm run build:mcp

{
  "mcpServers": {
    "weather": {
      "command": "node",
      "args": ["/absolute/path/to/weather-simplified-graphql/dist-mcp/src/mcp/server.js"]
    }
  }
}

Privacy

• No personal data collected — only accepts 5-digit US ZIP codes
• No cookies, analytics, or tracking
• ZIP codes are not stored or logged
• Full policy: weather-simplified-graphql.azurewebsites.net/privacy

License

MIT

Author

Weather Simplified — github.com/klietzau280