Skip to main content
The ArcWeather API provides developers, organizations, and platforms with access to real-time and near-real-time weather data, including radar, lightning, and other environmental intelligence. The API is designed to support operational decision-making, safety systems, and weather-aware applications through a simple and scalable interface.

​
Overview

The ArcWeather API is a collection of endpoints that deliver weather-related data for a variety of use cases, including:
  • Lightning detection and activity
  • Radar imagery and derived products
  • Weather alerts and hazard data
  • Additional environmental and forecast datasets
The API is available for both commercial and non-commercial use, provided that all access is authenticated via an API key.

​
Authentication

All requests to the ArcWeather API require a valid API key.
To obtain an API key:
1

Create an account at the ArcWeather Dashboard

https://app.arcweather.cloud
2

Generate an API key from your dashboard

3

Include your API key in all requests (see Authentication section for details)

Unauthorized requests or requests without a valid API key will be rejected.

​
Rate Limits & Usage

ArcWeather provides multiple usage tiers, including a free plan and additional paid plans with expanded capabilities. Each plan includes specific rate limits, which may apply to:
  • Requests per second
  • Requests per minute/hour
  • Data volume or endpoint access
Exceeding your rate limits may result in throttling or temporary blocking of requests. For detailed information on rate limits and plan options, please refer to the Pricing & Plans documentation.

​
Attribution

Use of the ArcWeather API may require proper attribution depending on your use case and plan. Attribution requirements may include:
  • Displaying “Powered by ArcWeather” in your application
  • Providing visible credit when displaying ArcWeather data publicly
  • Following branding or usage guidelines
Please refer to the Attribution Guidelines documentation for full requirements and examples.

​
Data Integrity & Liability

ArcWeather provides weather data on an as-is and as-available basis. While we strive for accuracy and reliability:
  • Data may be delayed, incomplete, or contain inaccuracies
  • Real-time feeds may experience interruptions or outages
  • Derived or predictive data should not be used as the sole source for critical safety decisions
ArcWeather is not responsible for:
  • Decisions made based on API data
  • Damages resulting from data inaccuracies or outages
  • Misuse or misinterpretation of weather information
Users are responsible for validating data and implementing appropriate safeguards for their specific use case. By using the ArcWeather API, you agree to all applicable legal terms and policies, including:
  • Privacy Policy
  • Terms of Service
  • Acceptable Use Policy
These documents outline your responsibilities, data usage rights, and limitations of liability. Please review the official policy pages for full details.

​
Next Steps

To get started:
  • Create your account at https://app.arcweather.cloud
  • Generate your API key
  • Review authentication and endpoint documentation
  • Explore available datasets and integrations
ArcWeather is built to power weather-aware systems that require speed, clarity, and actionable insight. Welcome to ArcWeather.
Last modified on April 3, 2026