On 03/01/2018 10:30 AM, I R A Darth Aggie wrote:

They might be able to guestimate the outside weather if there is a
pressure sensor. Better if it could track the pressure tendency. If
your instrument doesn't have a pressure sensor, any guess at the
outside conditions is just that: a guess, and probably a poor one.


Hello, and thank you for replying (you're the only one who did). I
think you're probably correct. Even though there's no numeric display
of ambient air pressure, a pressure sensor would allow for the
equivalent of rain-change-fair markings as used on vintage displays with
a dial pointer. Sincerely,
--
J. B. Wood e-mail: