What do the colours and symbols in the weather app mean?

After a longer press on the respective symbol a short explanatory text appears. Move your finger up or down on your display to read the text better. An explanation of the respective color is displayed above the color bar or meteogram for the selected time.

Can the weather radar settings be changed?

You can change the observation and forecast period (max. -2/+2 hours) and the minute interval (5, 15, 30 or 60 minute interval) of the weather radar as required. Call up the radar settings. You activate these via the button in the upper right corner of the app.