I use my Freelander as a weather sensor.
In the morning, I look out of the window.
If the Freelander is dry, the weather is good.
If the Freelander is wet, it's been raining.
If the Freelander is frosty, it's cold.
If the Freelander is rocking, it's windy.
If I can't see the Freelander, it's foggy. Or been nicked!
Cheers
Blippie