About Roadcast

What is Roadcast?

Roadcast is a free road trip weather forecast tool. Enter your start, destination, and departure time, and Roadcast shows you the weather at every stop along your route — at the hour you’ll actually be there. No signup, no tracking, no cost. Just the forecast you need to drive safer.

Why it exists

Most drivers check the weather at their destination before a long drive. But weather changes along the route — lake-effect snow near Kingston, fog in the Maritimes, sudden mountain squalls in BC. A clear forecast at your destination can hide dangerous conditions mid-trip. Roadcast solves this by showing conditions at every point along the way, matched to your arrival time.

Built by

Roadcast is built by Chaofan Wu, a full-stack developer based in Canada. You can find him on GitHub and LinkedIn.

Other tools

Also by Chaofan: TimeSpan Calculator — a free tool for calculating durations and differences between dates and times.

Source & tech stack

Roadcast is built with Vite, Svelte, and TypeScript. It runs entirely in your browser — no backend, no server, no database. Weather data comes from Open-Meteo and routing from OpenRouteService. The source code is on GitHub.

Disclaimer

• Do not use your phone while driving. Check Roadcast before you leave, not behind the wheel.
• Roadcast is for general reference only. For real-time conditions and official warnings, refer to your local weather service (e.g., Environment Canada or the US National Weather Service) and local road condition reports.
• Forecasts are based on third-party data and may be inaccurate, delayed, or unavailable. Always use your own judgement and drive to conditions.
• Roadcast is not a substitute for professional weather forecasting, navigation, or roadside assistance.