>Blue, blue, clouds are few
>Flashing blue, clouds are due
>Red, red, rain ahead
>Flashing red, snow instead
>Except in the summer, when flashing red means the Red Sox
game is rained out.

a local bank used to have a Weatherball, a big light globe on top of a tower on top of the bank (my memory is foggy on the exact wording :)

when the weatherball is red, warmer weather is ahead
when the weatherball is white, colder weather is in sight
when the weatherball is green, no changes are foreseen
weatherball blinking by night or by day, precipitation is on the way