Weather mavens what is this called?

[XanaDUer2]

I see them on Midsomer Murders. They look like clocks, hang on the wall, and have dials that point to weather events like RAIN, etc. What are these called?

[Nittersing]

1. Barometer?

[XanaDUer2]

3. Thnx!

[usonian]

2. Barometers.

Falling pressure said to mean rain ( low pressure front)

[XanaDUer2]

4. Thnx!

[MiniMe]

5. Barometer

Have one hanging in my office