Clouds
When the clouds are very red and a little tint of purple specially at sunset it is a sign of rain.

Rainbows.
A rainbow in the morning is the Shepherds warning and a rainbow in the evening is a Shepherds delight.
A rainbow is generally seen when the sun in shining and it raining. "Flight of Swallows"
When the swallows are flying high it is a sign of good weather, and when the swallows are flying low it is a sign of bad weather. "Sea gulls"
When the sea gulls come out from the sea and stay on the land, it is a sign of bad weather, and when the