io.github.cyanheads/nws-weather-mcp-server

Real-time US weather data via National Weather Service API. Forecasts, alerts, and observations.

1 0 tools GitHub

No known CVEs

No license

Actively maintained

Last commit 0d ago

Works with most clients

Transport: stdio, http

0 tools

Grade F

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Maps & Geo

Step 1

Install in your client

Config is the same across clients — only the file and path differ.

Supported in Claude Desktopstdio, http · Node 18+

Paste into ~/Library/Application Support/Claude/claude_desktop_config.json

{
  "mcpServers": {
    "nws-weather": {
      "url": "https://nws.caseyjhand.com/mcp",
      "type": "streamable-http"
    }
  }
}

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What io.github.cyanheads/nws-weather-mcp-server does

Public Hosted Server: https://nws.caseyjhand.com/mcp

Test This Server

No automated test available for this server. Check the GitHub README for setup instructions.

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Score breakdown

39/100across 5 weighted dimensions

How we score →

0255075100

−61

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Security

OSV.dev

No known CVEs.

No package registry to scan.

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Frequently Asked Questions

Is io.github.cyanheads/nws-weather-mcp-server safe to use?: io.github.cyanheads/nws-weather-mcp-server has no known CVEs as of the latest MCPpedia security scan. It does not require authentication, so any local process can connect — keep this in mind in shared environments.
How do I install io.github.cyanheads/nws-weather-mcp-server?: io.github.cyanheads/nws-weather-mcp-server supports copy-paste install configs on its MCPpedia page for Claude Desktop, Cursor, and Claude Code. Scroll to the Quick Install section and select your client.
What AI clients work with io.github.cyanheads/nws-weather-mcp-server?: io.github.cyanheads/nws-weather-mcp-server is compatible with claude-desktop, cursor, claude-code. It uses stdio and http transport.
Is io.github.cyanheads/nws-weather-mcp-server actively maintained?: io.github.cyanheads/nws-weather-mcp-server is actively maintained — last commit was 0 days ago. It has 1 GitHub stars.

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Community

Discussion

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Ask a question, share a tip, or report an issue.

Has anyone used this with Cursor?How do you handle auth?Any alternatives?

Tools

Five tools for real-time US weather data:

Tool

Description

nws_get_forecast

7-day or hourly forecast for coordinates. Resolves NWS grid internally.

nws_search_alerts

Active weather alerts filtered by area, point, zone, event, severity, urgency, certainty, and status.

nws_get_observations

Current conditions by coordinates (nearest station) or station ID.

nws_find_stations

Nearby observation stations sorted by distance with bearing.

nws_list_alert_types

All valid alert event type names for filter discovery.

nws_get_forecast

Get the weather forecast for a US location.

Default returns named 12-hour periods (14 total, ~7 days)

Hourly mode returns up to 156 one-hour periods with dewpoint and humidity

Coordinates resolve to NWS grid internally via /points endpoint

Formatted timestamps use the resolved local time zone

Returns forecast zone and county zone codes for chaining into nws_search_alerts

nws_search_alerts

Search active weather alerts with flexible filtering.

Filter by area (state/territory/marine codes), point (lat,lon), zone, event type, severity, urgency, certainty, or status

area, point, and zone are mutually exclusive; specify at most one location filter

National search when no filters provided

Blank optional location filters are ignored so form-based clients can submit empty fields safely

Event matching is case-insensitive and partial, so "tornado" matches both watches and warnings

status defaults to live Actual alerts, but can be set to Exercise, `Syste

Frequently Asked Questions

Is io.github.cyanheads/nws-weather-mcp-server safe to use?

io.github.cyanheads/nws-weather-mcp-server has no known CVEs as of the latest MCPpedia security scan. It does not require authentication, so any local process can connect — keep this in mind in shared environments.

How do I install io.github.cyanheads/nws-weather-mcp-server?

io.github.cyanheads/nws-weather-mcp-server supports copy-paste install configs on its MCPpedia page for Claude Desktop, Cursor, and Claude Code. Scroll to the Quick Install section and select your client.

What AI clients work with io.github.cyanheads/nws-weather-mcp-server?

io.github.cyanheads/nws-weather-mcp-server is compatible with claude-desktop, cursor, claude-code. It uses stdio and http transport.

Is io.github.cyanheads/nws-weather-mcp-server actively maintained?

io.github.cyanheads/nws-weather-mcp-server is actively maintained — last commit was 0 days ago. It has 1 GitHub stars.

@cyanheads/nws-weather-mcp-server

Get US weather forecasts, active alerts, and current observations via the National Weather Service API. STDIO or Streamable HTTP.

5 Tools • 1 Resource

Public Hosted Server: https://nws.caseyjhand.com/mcp

Tools

Five tools for real-time US weather data:

Tool	Description
`nws_get_forecast`	7-day or hourly forecast for coordinates. Resolves NWS grid internally.
`nws_search_alerts`	Active weather alerts filtered by area, point, zone, event, severity, urgency, certainty, and status.
`nws_get_observations`	Current conditions by coordinates (nearest station) or station ID.
`nws_find_stations`	Nearby observation stations sorted by distance with bearing.
`nws_list_alert_types`	All valid alert event type names for filter discovery.

`nws_get_forecast`

Get the weather forecast for a US location.

Default returns named 12-hour periods (14 total, ~7 days)
Hourly mode returns up to 156 one-hour periods with dewpoint and humidity
Coordinates resolve to NWS grid internally via /points endpoint
Formatted timestamps use the resolved local time zone
Returns forecast zone and county zone codes for chaining into nws_search_alerts

`nws_search_alerts`

Search active weather alerts with flexible filtering.

Filter by area (state/territory/marine codes), point (lat,lon), zone, event type, severity, urgency, certainty, or status
area, point, and zone are mutually exclusive; specify at most one location filter
National search when no filters provided
Blank optional location filters are ignored so form-based clients can submit empty fields safely
Event matching is case-insensitive and partial, so "tornado" matches both watches and warnings
status defaults to live Actual alerts, but can be set to Exercise, `Syste

... View full README on GitHub