Air Quality and UV Index for the FR945

You mean this one?

https://apps.garmin.com/en-US/apps/fecb7b91-f04a-4491-a0a1-c67ecde82de4

It could be it just hasn't been ported to the 945 yet.  Maybe try "Contact developer" for it?

Yes, that's the one.  I contacted the developer twice .  I never get a response back, so I figured I request it here.

It's a garmin one, so maybe has some info.

Thanks for the info Jim.  I just sent Coleman a PM.

The Air Quality widget by dcmarti is great. It seems similar and supports the 945

https://apps.garmin.com/en-US/apps/175aa69f-945e-4030-9de4-3723e1bd30dd

Shame the Garmin Air widget doesn't work in Europe...

I've emailed the developer of that widget.  It is a great widget, but he uses a 1-100 scale for air quality which is quite different than what we use in the US (graph posted below).  A reading of 90 is terrible using his scale, but 51-100 is moderate in the US.  I was really hoping someone would be willing to create a widget.  The wife and I love trekking in the Cascade Foothills, but she has asthma.  It isn't uncommon in this area to have forest fires 100's of miles away and the winds bring in poor air even though the skies look clear.  The Garmin widget worked great on my 935 for planning location or the time of day for our trips.