Signs of bad weather
Bright rainbow is cast in green — to the bad weather, and, the rainbow is greener, the longer it will rain.
Low and flat bow, rests with its ends in a river, lake or valley bottoms — to prolonged bad weather.
If at the same time, there are two or three of the rainbow — will be long warm rain.
If the rainbow after the rain lasts a long time — it portends bad weather.
If there is a rainbow in the morning — it's a rainy weather. If the rainbow is directed from north to south — the rain. If the rainbow in the west — rain.
Signs of improvement in the weather
If the rain will briefly rainbow and blue it is not thick, and bright yellow — will soon come good weather, especially if the rainbow is directed from east to west.
If a rainbow appears in the evening — until the next morning the weather is good, and in the morning might rain.
If rainbow dominates green — this indicates improvement in the weather.
If the rainbow high and steep — it portends good but wind weather.