I've been writing up some entries on the MCQN Ltd catalogue today (that in itself is something I'll be writing about at some point, and when I do then entries #ibal155 and #ibal164 will link to the explanations, rather than basic holding pages), including #ibal53, a project I did for Russell Davies to help him with his experiments in background audio.
That reminded me that these days I tend to tell the weather aurally rather than visually.
Not when I want detailed information about the weather, then I look out of the window and often at passing cars' windscreen wipers as they're a good indicator of how heavily it's raining (when it isn't raining heavily enough for that to be obvious).
But for a general ambient awareness of precipitation levels I use my ears. I'm particularly interested in whether or not it's raining because that's the overriding factor in my decision to go for a ride. Cycling in warm, sunny weather is always nice, but I have the correct attire to be equally happy when it's cold or dark or windy. I do end up cycling in the rain a reasonable amount (and do have waterproofs to wear if need be) but that's usually when I skip it.
Both at my desk and at home, I'm near enough to a main road for there to be a background level of road noise, and there is a distinctive difference between the sound of rubber on a dry road and rubber on a wet road.
I do get an additional ambient visual indicator of particularly good days at home. The blinds in my bedroom allow a reasonable amount of daylight through, so I can tell the difference between a sunny and a non-sunny day when I wake up.
I wonder if you could replicate that with a minor extension to Russell's sound boxes? Add a controllable light source (something a bit like an uplighter, which provides a wash of colour across a wall) to build a single-pixel display with a speaker for background sound. Then it could provide a weather forecast in the same ambient form that I get the current weather.
And an excellent video from Danish TV...