Red sky and rings around the moon
RED sky at night, shepherd's delight. Red sky in morning, shepherd's warning.
In the morning and evening the sun is directing its light through the thickest part of the atmosphere. This cuts the blue parts of the colour spectrum and allows the red to reflect off particles in the atmosphere.
Red in the morning means we have moisture being pushed onto the coast allowing the red part of the spectrum to reflect off the particles of moisture and that is what we see.
If we see a red glow at night that means we have a drier system pushing from the west and as it moves over land it picks up dust particles and they, once again, reflect the red part of the spectrum toward us.
When a halo rings the moon or sun, rain is approaching on the run.
The ring around the moon is caused by the refraction of moonlight from ice crystals.
These crystals, that cover and form the halo are from high-level cirrus cloud and cirrus normally precedes a warm front.
This front can be associated with rain or a storm so, when you see the ring, there is a fair chance you will see rain in the next few days.