1. Red sky in morning, Sailors take warning.
Red sky at night, Sailors' delight.
2.Rainbow in the morning
gives you fair warning
3.When the bubbles of coffee collect in the center of the cup, expect fair weather. When they adhere to the cup, forming a ring, expect rain. If the bubbles separate without assuming any fixed position, expect changing weather.
4. A wind from the south, has rain in its mouth