Expect rain and maybe severe weather when dogs eat grass.

If toads appear in large numbers,
expect rain

Clear moon,
frost soon

If the sparrow makes a lot of noise,
rain will follow.

Evening gray and morning red, put on your hat or you'll wet your head.

When the leaves of trees turn over, it foretells windy conditions and possible severe weather.

If autumn leaves are slow to fall,
prepare for a cold winter.

Warm summer means a cold winter.

Cats scratch a post before wind, wash their faces before a rain, and sit with their backs to the fire before snow.

Evening red and morning gray,
are sure signs of a fine day.