I really think it's regional (speaking from having lived in 4 distinct weather situations).

When I lived in New England - everyone talked about the weather all the time. I always checked multiple sources every day (this was predominantly before the internet, too). It was a constant topic of conversation for everyone, but in New England, the weather is constantly changing. Seasons, daily, even hourly.

Then I moved to FL. No one talked about the weather unless there was a hurricane approaching and then that's ALL anyone talked about. But, in FL, the weather barely changed for 9 months of the year (at least, where I lived)....it was 85F, humid and it rained/thunderstormed every single afternoon. In the 'winter' it was dry and sunny every day with an occasional chilly crisp day. Not much to talk about, I guess.

Then I moved to NC where the weather changed a lot again. It was a constant topic of conversation but not quite as much as it was in New England. Interestingly enough, where I was in NC, people rarely complained about the weather - usually they were happy about it no matter what it was doing outside. Not sure why.

Lastly, now in the PNW - I notice that people don't even mention the weather for most of the year. They pretty much just ignore it and go about their day. I think it only really gets noticed in the last spring when it starts to dry out a little and in the mid-fall when it starts to rain again. I will say that people were pretty weather excited last winter when we got all that snow, but apparently that was a total freaky experience as they haven't had that much snow here in decades. For me, I don't bother looking at the forecast unless I've got something planned. What it's doing outside doesn't really affect my day, so I don't care. Of course, that's partly related to my lifestyle now and has less to do with the actual weather patterns.