"Red Sky at night, sailor's delight. Red sky in the morning, sailor take
"Mare's tails and mackerel scales make tall ships take in their sails."
"Clear moon, frost soon."
"A year of snow, a year of plenty."
"Halo around the sun or moon, rain or snow soon."
"Rainbow in the morning gives you fair warning."
When the stars begin to huddle, the earth will soon become a puddle."