Weather API
Unit groups and units of measurement
The Weather API includes a unitGroup parameter that controls the units of measurement used in the response. This article lists…Visual Crossing / July 9, 2026
Defining the icon set in the Weather API
The Visual Crossing Timeline Weather API can return an icon value for each daily, hourly, and current-conditions weather record. This…Visual Crossing / July 7, 2026
How to Add a Weather Forecast to Your Website
Adding a weather forecast to a website can be as simple as retrieving forecast data from a weather API and…Andrew Wigmore / July 4, 2026
How to Find and Manage Your Visual Crossing Weather API Key
The Visual Crossing Weather API is a RESTful API that provides historical and forecast weather data. API queries are secured…Visual Crossing / July 1, 2026
How to Debug Weather API Requests in Your Code
This article provides suggestions on how to troubleshoot and resolve some of the common problems we see when people attempt…Visual Crossing / June 23, 2026
How to include astronomical data (sun, moon, twilight) in your Weather API requests
In addition to providing historical weather observations and weather forecast data, the Weather API also provides a full set of astronomical information.…Visual Crossing / June 19, 2026
How Your Data Is Used Within Visual Crossing
Visual Crossing is designed to minimize the customer information required to provide weather data services. For most Weather API use…Visual Crossing / June 17, 2026
What is the cause of “Maximum concurrent jobs has been exceeded”, HTTP response 429
The error: with HTTP response code: means that your account is attempting to run more Weather API requests at the…Visual Crossing / June 16, 2026
How to Build a Raspberry Pi Frost Alert Using a Weather API
A Raspberry Pi, three LEDs, and a weather forecast are all you need to build a simple frost warning system.…Visual Crossing / June 15, 2026
Degree Days Weather API
Degree days are a standardized method to calculate the total heat or warmth a location has experienced. They are used…Visual Crossing / June 14, 2026
What is the queryCost parameter?
The queryCost parameter can be found in the response of the Timeline Weather API. QueryCost is used to indicate how…Visual Crossing / June 8, 2026
How to Use a Weather API in JavaScript
JavaScript can retrieve weather data directly from a weather API using the built-in Fetch API available in modern browsers. In…Visual Crossing / June 5, 2026
