# The Weather Company Data APIs (slim)

> The Weather Company Data APIs return current conditions, forecasts to 15 days, historical data, government alerts, imagery and aviation weather from the company behind weather.com. Access is by API key at api.weather.com, sold in packages to businesses.

- Full: https://www.anchorterminal.com/tools/weather-company.md (~7,000 tokens) · this version ~1,780 tokens · JSON https://www.anchorterminal.com/tools/weather-company.json · canonical https://www.anchorterminal.com/tools/weather-company
- Index: https://www.anchorterminal.com/llms.txt · API: https://www.anchorterminal.com/api/v1/index.json · Updated: 2026-10-08

**D · 52.6/100 · rank #565 of 722 · #9 in Weather & climate data · not agent-ready · confidence medium**


Assessment: A wide weather data API with 168 API references built from OpenAPI documents, global 4 km current conditions, hourly history from June 2015 and a status page with component history. Keys come only through a sales-reviewed trial or contract, travel only in the URL, and the terms that govern the API are not published.

## Facts

- Kind: HTTP API · vendor: The Weather Company, LLC · category: Weather & climate data · legal entity: The Weather Company, LLC · provenance 77/100
- Endpoint: `https://api.weather.com` (HTTP)
- Auth: API key · pricing: Paid · x402: no · licence: Proprietary service. Use is under a content licensing agreement with The Weather Company, which is not published
- Probe metrics: not measured yet (probes haven't run)
- Base URL: https://api.weather.com, with v1, v2 and v3 paths. JSON or GeoJSON responses, CSV and Parquet on History on Demand
- Packages: Standard Weather Data, API Developer, Agriculture, Air Quality, Aviation Core, Aviation Enhanced Core, Aviation Enroute, Probabilistic Forecast, Recent Lightning Strikes, Renewable Energy, Seasonal Forecast, Severe Weather, plus History on Demand
- Forecast range: Daily and intraday to 15 days, hourly to 360 hours, 15-minute steps for the next 7 hours. Each duration is a separately entitled endpoint
- Current conditions: Currents On Demand, blended at request time on a global grid of about 4 km, plus site-based observations and personal weather stations
- History: Hourly gridded history from June 2015 (History on Demand), agriculture and energy fields from March 2020, US almanac averages over 10 to 30 or more years
- Alerts: Headlines and details from the NWS, Environment Canada, MeteoAlarm, the Australian Bureau of Meteorology, KMA and JMA. Attribution required. Paged with a `next` token
- Rate limits: Trial 100 requests a minute and 50,000 a day. Paid plans have a monthly cap set by contract. Exceeding a limit returns 401
- Errors: JSON body with a code and message, such as `CDN-0004` Missing apiKey. 204 means no data. No 429 is documented
- Aggregation: `/v3/aggcommon` takes up to 10 products and several locations, URL up to about 4,096 characters, response under 1 MB
- Documentation: 56 guide pages and 168 API references generated from OpenAPI documents, 11 Postman collections. No llms.txt or downloadable OpenAPI file. The site is labelled beta
- Status: theweathercompanyapis.statuspage.io, 16 components. Nine incidents from 10 July to 8 October 2026, all minor or none
- Support: Email at apisupport@weather.com and the API customer portal on ServiceNow
- Prices: Standard package, annual plan $500 per month (plan); Call on Standard, at the plan cap $0.50 per 1,000 requests

- Scores: Reliability 73, Performance pending, Schema & documentation 67, Agent ergonomics 54, Security & auth 48, Payments & pricing 20, Task success pending, Maintenance & community 36, Transparency & trust 49 · total over the 7 assessed categories
- Why: Reliability, Status page at theweathercompanyapis.statuspage.io with 16 components (20). · Schema & documentation, 168 API reference sections are generated from OpenAPI documents (version 3.2.0 in the page data), and 11 Postman collections can be download… · Agent ergonomics, Response size is controlled by choosing a duration endpoint, by the `products` field selection and compact mode on History on Demand, and by… · Security & auth, A plain API key whose endpoints are set by the customer's package. · Payments & pricing, No x402, MPP or L402 (0). · Maintenance & community, The History on Demand Direct reference records a specification change on 14 September 2026, 24 days before the check, and the documentation… · Transparency & trust, A closed service.
- Sources: 24, open questions: 9, both in the full twin
- Capabilities: weather.current, weather.forecast, weather.historical, weather.alerts, weather.marine, data.weather
- JSON: https://www.anchorterminal.com/api/v1/tools/weather-company.json
- Verify (for the vendor): the badge `https://www.anchorterminal.com/badges/weather-company.svg` or a link to https://www.anchorterminal.com/tools/weather-company from a page on weather.com or weathercompany.com or one of their subdomains, then `POST https://www.anchorterminal.com/api/v1/verify` `{"slug", "url"}` or `verify_listing` at /mcp; re-checked weekly, no effect on the grade. Snippets in the full twin.

## Before you call it

1. Send `units`, `language` and `format=json` with a location on every v3 call, plus `Accept-Encoding: gzip`, which the usage guide marks as required.
2. Keep the key out of logs and client-side code, because it travels in the query string as `apiKey`.
3. Treat a 401 as either a bad key, an endpoint outside the key's package or an exceeded limit, and treat a 204 as no data for the query.
4. Each forecast duration (`3day` to `15day`) is a separate entitlement. Request only durations the contract covers.
5. Use `/v3/aggcommon` to combine up to 10 products in one request. Each product and each location still counts as one call.

## Connect

```bash
curl --compressed "https://api.weather.com/v3/wx/forecast/daily/3day?geocode=33.74,-84.39&units=e&language=en-US&format=json&apiKey=$TWC_API_KEY"
```
Full config and headless snippets are in the full page. Through letme (picks today, calling later): https://letme.dev/weather-company

## Similar tools

| Tool | Grade | Score | Shared capabilities | Slim |
| --- | --- | --- | --- | --- |
| Xweather Weather API | B | 67.1 | weather.current, weather.forecast, weather.historical, weather.alerts, weather.marine, data.weather | https://www.anchorterminal.com/tools/xweather.min.md |
| WeatherAPI.com | B | 65.3 | weather.current, weather.forecast, weather.historical, weather.alerts, weather.marine, data.weather | https://www.anchorterminal.com/tools/weatherapi-com.min.md |
| meteoblue Weather API | C | 61.7 | weather.current, weather.forecast, weather.historical, weather.alerts, weather.marine, data.weather | https://www.anchorterminal.com/tools/meteoblue.min.md |
| Tomorrow.io Weather API | D | 51.4 | weather.current, weather.forecast, weather.historical, weather.alerts, weather.marine, data.weather | https://www.anchorterminal.com/tools/tomorrow-io.min.md |
| Google Weather API (Maps Platform) | B | 66.8 | weather.current, weather.forecast, weather.historical, weather.alerts, data.weather | https://www.anchorterminal.com/tools/google-weather-api.min.md |


## Panel reviews (0, desk reviews from public material, no calls made)