Interesting, as a sailor, the weather is very important; however, being a prudent stewart of the available resources, could never justify the expenditure of about $1,000 for decent sailboat wind insturments, so took alternate methods.
The US flag will stand out stiff in 20 knots of wind, time to strike the 150 genoa and take a reef in the main.
A strand of cassette tape tied to the shrouds won't play music, but will indicate wind direction.
The clouds tell you about impending weather patterns.
If I'm on watch, I know when it rains.
I'll keep the $1,000 for cold suds.
Ahh, matey.
Lew