Sky Database
*** Cameras with gps already give your location and elevation.**
*** Photo sites are including weather forecast for specific areas**
The camera records the time a photo was taken. The photo site would post the photo taken at that time (with in a few minutes) along with the weather stats at that time. I only have a spreadsheet to play with.
The data that relates to visual quality at the time a pic was taken is added to the spreadsheet. A link to that pic (facebook for me) is added to that spreadsheet.
Appearance humidity dew …
Columns can be sorted and look to the appearance discription/pic to see the likely appearance outside under those conditions.
There is a lot more to the idea
If I can’t paste the concept here it is Stuff: Sky Database
If you love photography it might be a fun experiment