Blocks & Decoration Weather Vanes should work like Grandfather Clocks.

[Xylia]

So, if you place a Grandfather Clock and stand near it, you can get the time (though inaccurate) by standing near it and clicking upon it and IIRC, it also puts it in the information area in the right-hand side of the screen underneath the minimap.

The Weather Vane should do the same thing for Weather Conditions!

 

[Sora_92]

Yes please! That makes lots of sense, and could be very useful early game when you don't have a weather radio yet.
It looks cool as just deco, but it would be even cooler if it would do something like this too!