# US Weather Forecast & Alerts Tracker (NWS) (`m_ctim/us-weather-tracker`) Actor

Get forecast, current conditions, and active weather alerts for any US location from the official National Weather Service API. No key, no proxy.

- **URL**: https://apify.com/m\_ctim/us-weather-tracker.md
- **Developed by:** [Timothy Kelvin](https://apify.com/m_ctim) (community)
- **Categories:** Other
- **Stats:** 1 total users, 0 monthly users, 100.0% runs succeeded, 0 bookmarks
- **User rating**: No ratings yet

## Pricing

Pay per usage

This Actor is paid per platform usage. The Actor is free to use, and you only pay for the Apify platform usage, which gets cheaper the higher subscription plan you have.

Learn more: https://docs.apify.com/platform/actors/running/actors-in-store#pay-per-usage

## What's an Apify Actor?

Actors are web data automations that power AI and operations. They run on the Apify platform to scrape websites, process data, connect APIs, and automate workflows.
In Batch mode, an Actor accepts a well-defined JSON input, performs an action which can take anything from a few seconds to a few hours,
and optionally produces a well-defined JSON output, datasets with results, or files in key-value store.
In Standby mode, an Actor provides a web server which can be used as a website, API, or an MCP server.
Actors are written with capital "A".

## How to integrate an Actor?

If asked about integration, you help developers integrate Actors into their projects.
You adapt to their stack and deliver integrations that are safe, well-documented, and production-ready.
The best way to integrate Actors is as follows.

- **AI agents and MCP clients** — the [Apify MCP server](https://docs.apify.com/integrations/mcp.md) at `https://mcp.apify.com` (remote, streamable HTTP, OAuth on first use).
- **Agentic workflows and local Actor development** — [Agent Skills](https://apify.com/.well-known/agent-skills/index.json) with the [Apify CLI](https://docs.apify.com/cli/docs.md): `npm install -g apify-cli`, then `apify login`.
- **JavaScript/TypeScript projects** — the official [JS/TS client](https://docs.apify.com/api/client/js/docs.md): `npm install apify-client`.
- **Python projects** — the official [Python client](https://docs.apify.com/api/client/python/docs.md): `pip install apify-client`.
- **Any other language** — the [REST API](https://docs.apify.com/api/v2.md).

For usage examples, see the [API](#api) section below.

For more details, see Apify documentation as [Markdown index](https://docs.apify.com/llms.txt) and [Markdown full-text](https://docs.apify.com/llms-full.txt).

# README

## US Weather Forecast & Alerts Tracker (NWS)

Give it a list of US coordinates. It returns the forecast, active weather
alerts, and location info from the official National Weather Service API —
the same data source behind weather.gov, as clean JSON.

### Input

| Field | Type | Description |
|---|---|---|
| `locations` | array | `{ "label": "optional name", "latitude": 30.2672, "longitude": -97.7431 }` |
| `forecastPeriods` | integer (default `4`) | How many ~12-hour forecast periods to return (4 ≈ next 2 days). |

```json
{
  "locations": [
    { "label": "Austin, TX", "latitude": 30.2672, "longitude": -97.7431 }
  ],
  "forecastPeriods": 4
}
```

US locations only — that's the National Weather Service's coverage area.

### Output

One record per location:

```json
{
  "label": "Austin, TX",
  "latitude": 30.2672,
  "longitude": -97.7431,
  "city": "Austin",
  "state": "TX",
  "timeZone": "America/Chicago",
  "forecastPeriods": [
    {
      "name": "Today",
      "temperature": 99,
      "temperatureUnit": "F",
      "precipitationProbability": 8,
      "windSpeed": "0 to 5 mph",
      "windDirection": "S",
      "shortForecast": "Sunny",
      "detailedForecast": "Sunny, with a high near 99. ..."
    }
  ],
  "activeAlerts": [],
  "checkedAt": "2026-08-07T00:00:00.000Z"
}
```

### How it works

Direct calls to `api.weather.gov` — official NOAA/National Weather Service
API, US federal government data (public domain, no non-commercial
restriction, no API key). No proxy, no scraping.

Coordinates only, no geocoding built in: NWS's API only accepts
latitude/longitude, not place names. Look up coordinates for a city via any
map service before running.

### Why NWS instead of a global weather API

Global free weather APIs (e.g. Open-Meteo) restrict their free tier to
non-commercial use — using one to power a paid actor would violate those
terms. NWS is US-government public data with no such restriction, at the
cost of US-only coverage.

# Actor input Schema

## `locations` (type: `array`):

List of { "label": "optional name", "latitude": 30.2672, "longitude": -97.7431 }. US locations only (National Weather Service coverage).

## `forecastPeriods` (type: `integer`):

How many forecast periods to return (each period is ~12 hours: day/night). Default 4 = next 2 days.

## Actor input object example

```json
{
  "locations": [
    {
      "label": "Austin, TX",
      "latitude": 30.2672,
      "longitude": -97.7431
    }
  ],
  "forecastPeriods": 4
}
```

# API

You can run this Actor programmatically using our API. Below are code examples in JavaScript, Python, and CLI, as well as the OpenAPI specification and MCP server setup.

## JavaScript example

```javascript
import { ApifyClient } from 'apify-client';

// Initialize the ApifyClient with your Apify API token
// Replace the '<YOUR_API_TOKEN>' with your token
const client = new ApifyClient({
    token: '<YOUR_API_TOKEN>',
});

// Prepare Actor input
const input = {
    "locations": [
        {
            "label": "Austin, TX",
            "latitude": 30.2672,
            "longitude": -97.7431
        }
    ]
};

// Run the Actor and wait for it to finish
const run = await client.actor("m_ctim/us-weather-tracker").call(input);

// Fetch and print Actor results from the run's dataset (if any)
console.log('Results from dataset');
console.log(`💾 Check your data here: https://console.apify.com/storage/datasets/${run.defaultDatasetId}`);
const { items } = await client.dataset(run.defaultDatasetId).listItems();
items.forEach((item) => {
    console.dir(item);
});

// 📚 Want to learn more 📖? Go to → https://docs.apify.com/api/client/js/docs

```

## Python example

```python
from apify_client import ApifyClient

# Initialize the ApifyClient with your Apify API token
# Replace '<YOUR_API_TOKEN>' with your token.
client = ApifyClient("<YOUR_API_TOKEN>")

# Prepare the Actor input
run_input = { "locations": [{
            "label": "Austin, TX",
            "latitude": 30.2672,
            "longitude": -97.7431,
        }] }

# Run the Actor and wait for it to finish
run = client.actor("m_ctim/us-weather-tracker").call(run_input=run_input)

# Fetch and print Actor results from the run's dataset (if there are any)
print(f"💾 Check your data here: https://console.apify.com/storage/datasets/{run.default_dataset_id}")
for item in client.dataset(run.default_dataset_id).iterate_items():
    print(item)

# 📚 Want to learn more 📖? Go to → https://docs.apify.com/api/client/python/docs/quick-start

```

## CLI example

```bash
echo '{
  "locations": [
    {
      "label": "Austin, TX",
      "latitude": 30.2672,
      "longitude": -97.7431
    }
  ]
}' |
apify call m_ctim/us-weather-tracker --silent --output-dataset

```

## MCP server setup

```json
{
    "mcpServers": {
        "apify": {
            "type": "http",
            "url": "https://mcp.apify.com/?tools=fetch-actor-details,m_ctim/us-weather-tracker"
        }
    }
}

```

The hosted server signs you in with OAuth on first connect, so no API token belongs in this config. Clients without OAuth support can send an `Authorization: Bearer <APIFY_API_TOKEN>` header instead, using a token from API & Integrations in Apify Console (https://console.apify.com/settings/integrations).

## OpenAPI specification

Download the OpenAPI definition: https://api.apify.com/v2/actors/396ZnxFW6UsKoTIvH/builds/ngDlndJyBKjQHRXBP/openapi.json