About canweather.ca

canweather.ca shows Environment Canada forecasts and recent radar for over 800 places across Canada. It's built to load on a bad cell signal — the typical forecast page is about 12 KB before compression, with no third-party scripts, no ads, and no tracking.

What you get

• Active weather alerts for the chosen location, when any are in effect.
• Environment Canada's 7-day forecast, with a small inline temperature chart.
• Current conditions including a "feels like" reading when humidex or wind chill applies.
• Recent radar imagery on opt-in: the bare page shows nothing until you expand the radar disclosure. Click play to see roughly an hour of animation, frame by frame.

About the page weight

Every forecast page is pre-rendered as plain HTML and served directly from disk. No PHP runs for normal visits. Radar frames load only after you open the disclosure, and the animation frames load only after you click play. JavaScript is used minimally — for the radar player, the homepage location autocomplete, and a share button — but every page works without it. Forms still submit, links still link.

Who it's for

Anyone in Canada who needs weather information on a marginal connection: hikers, hunters, anglers, sailors, pilots, fire crews, farmers, people at remote cabins, anyone on the road in spotty coverage.

Contact

This is a small personal project. For bug reports, suggestions, or anything else: [email protected].

Data attribution

Forecast and radar data are from Environment and Climate Change Canada, used under the Open Government Licence – Canada. Weather icons are used under the Government of Canada Terms and Conditions. This site is not affiliated with or endorsed by ECCC. Information here is for general reference only — don't rely on it for safety-critical decisions.