Red sky at night,

Sailor's delight,

Red sky at morning,

Sailors take warning.

Mackerel sky,

Rain is 'nigh.

If cumulus clouds are smaller at sunset than at noon,

Expect a crisp morning with dew.

If clouds appear like rocks and towers,

The Earth's refreshed with frequent showers.

A ring around the sun or moon,

Means that rain will show up soon.

The higher the clouds,

The fairer the weather.

When clouds are upon the hills,

They'll some come down to the mills.