If more bees enter the hive than leave it, expect rain, even if the weather looks clear.
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When clouds go up the hill, They'll send down water to turn a mill. -Hampshire
If on September 19 there is a storm from the south, a mild winter may be expected.
A dappled sky, like a painted woman, soon changes its face. [France]
A winter thunderstorm was once thought to be an omen of the death of a great man.
A smelly drain means rain.
Send soon, O frog, the jewel of water! And ripen the wheat and millet in the field.
(Because the frog is an amphibian and "lord of the waters," he is though by some superstitions to bring the spring rains.)
If dead branches fall in calm weather, expect rain.