This repo generates the below widget from weather data. This type of widget is called a meteogram.

1. Every hour python refresh.py fetches a forecast from SMHI Open Data and a Copernicus-based UV forecast from Strålsäkerhetsmyndigheten. The result is saved to weather/weather.json.
2. When the static index.html file is loaded, it makes a request using fetch to weather.json
3. The JSON file is passed through transform_data towards a format that can be used in a template
4. A mustache template converts the transformed data to HTML
5. The index.html file reloads itself every hour to reflect the newly loaded weather.json

• index.html is a static file (easier to cache and deploy)
• Forecast data is fetched at most once per hour.
• UV data is fetched for Sverige (Stockholm) by default. Set UV_LOCATION and UV_TIMEZONE together to use another location offered by SSM.

Run python refresh.py --force to fetch new data even when the existing forecast is less than one hour old.