Weather Card Showing Date Not Day

I have HA 0.97.2 with the frontend running on an old iPad 3 (ios 9.3.5) using the ios app. This has to use the old States UI (nothing shows up otherwise).

The weather.home (Norwegian met) weather card on the iPad is showing the forecast days as e.g. ‘26 August 2019 12:00pm AEST’ instead of the day of the week (Monday in this case).

I installed Dark Sky hoping to fix this but it’s doing the same thing (showing full date not day of the week).

If I display the same cards up in Lovelace using a newer machine, the day of the week is shown as I would like.

Is this fixable? Or is the older States UI the problem?