http://www.greek-gods.org/greek-deities/sky-deities.php

These deities or gods presided over the elements of sky, light, and heavens.
They are related to the periods of the day and night, the winds, clouds, stars, and planets. Sky deities are also associated with air, rain, snow, and rainbows.

Aeolus (Aiolos) - God and ruler of the winds. He was encountered by Odysseus and his crew in the Odyssey. They spent about a month on his island and became friends with the god. When they departed, Aeolus trapped all the other winds except the one which would lead them to Ithaca. He trapped them inside the box and gave it to Odysseus and told him to not open it.

Aether - primeval god of the upper air. He was one of the first-born gods who personified the pure-bright upper air, below Uranus (heaven), that only gods could breathe.

Arce - messenger of the Titans and the twin sister of Iris. She took sides with the Titans and was, after the war, stripped of her wings by Zeus and sent to Tartarus.

Astraeus - Titan god of the stars and the art of astrology. He was also the god of the dusk and father of the four winds and the stars of heaven by Eos (goddess of dawn).

Astra Planeti - gods of the five wandering stars or planets. They were known as Phaenon (God of Kronion, the planet Saturn), Phaethon (God of Dios, the planet Jupiter), Pyroeis (God of Areios, the planet Mars), Hesperus (god of Venus, the evening star), Eosphorus (god of Venus, the morning star), and Stilbon (god of Hermaon, the planet Mercury).

Aurai - nymphs of the cooling breeze were the daughters of the winds Boreas, Eurus, Notus, and Zephyrus. Most known of these was Aura, the goddess of the breeze and the fresh air of the early morning.

Chaos - the endless form of nothingness, from which everything else sprang. He was the first primeval state of existence who was followed by Erebus, Nyx, Gaea, and Eros.

Chione - goddess of snow and daughter of Boreas, the wind of the north, and Oreithyia. Chione had a sister Cleopatra and winged brothers Zetes and Kalais.

Ersa (Herse) - goddess of the morning dew. She was the daughter of Zeus and Selene and had a sister Pandia.

Hemera - primeval goddess of daytime and daylight. She was the daughter of Erebus and Nyx and was a sister and wife of Aether. Hemera was closely related with her mother Nyx, where the two were constantly changing day and night.

Hesperides - three goddesses of the evening and sunset who tended the Hera`s sacred garden in a far western corner of the world, located in Libya or Atlas Mountains in North Africa. They were mentioned as the daughters of Atlas or sometimes the daughters of the primeval goddess Nyx. They were encountered by Perseus who came for kibsis, the only sack able to contain the Medusa`s head. The Hesperides also featured in the Eleventh labor of Heracles, where the hero had to obtain the golden apples.

Iris - goddess of the rainbow and divine messenger of the gods. She was the missing link between the gods and mankind. Iris was also referred to as a personal messenger of Hera. She traveled by the speed of wind throughout different realms which were heavens, depths of sea, earth, and underworld.

Menae - goddesses of the fifty lunar months of the four-year period of the Olympic Games. Their number was fifty which represented each phase of the moon during these four years. It was the basic unit of measurement of time for the Ancient Greeks.

Nephelai - nymphs of the clouds and rain. They were originally Oceanid nymphs, daughters of Oceanus, who started bringing water to the heavens in cloud formations. The Nephelai also supported the earth deities and their rivers, springs, and other freshwater brothers and sisters by pouring the rains upon them.

Pandia - goddess of brightness and the full moon. She was the daughter of Zeus and Selene and had a sister Ersa who was according to some sources interpreted as the same person.

Pleiades - goddesses of the constellation Pleiades. But before, they were mountain nymphs and daughters of Atlas and sea-nymph Pleione. Their names were Alcyone, Sterope, Celaeno, Electra, Maia, Merope, and Taygete. They were chased by desirous giant Orion who wanted them at any cost. They were protected by Zeus who placed them among stars, known as the constellation Pleiades.

Selene - goddess of the moon. She was the daughter of Hyperion and Theia and had a brother Helios and a sister Eos. Her great love was a mortal man called Endymion who was granted immortality and eternal youth by Zeus and was placed in a state of eternal slumber near Mount Latmos, where his bride came every night to consort with him.

Uranus - primeval god of the heavens and sky. He was the son and consort of Gaea and from their union came the twelve Titans, three Cyclopes, and three Hekatoncheires. Uranus was also responsible for the birth of the Erinyes, Giants, Meliae, and Aphrodite when his blood was spilled upon the earth.

Water Goddess deities Aztec mythology

Chalchiuhtlicue, goddess of water, lakes, rivers, seas, streams, horizontal waters, storms, and baptism.
Huixtocihuatl, goddess of salt
Tlaloquetotontli, goddess of the rivers.

Celtic mythology
Acionna (Gaulish) - a water goddess/genius loci of the Orleanais region and the Essonne
Belisama, goddess of lakes and rivers, fire, crafts, and light
Boann - goddess of the River Boyne (Irish)
Sinann (Irish), goddess of the River Shannon
Sequana (Gaulish), goddess of the River Seine

Chinese mythology
Mazu, water goddess, and protector of seafarers
Guo Pu, Immortal of the Water Realm.

Gods of the Five Waters
Long mu, Goddess of the Xijiang River in Lingnan area
Ehuang & Nuying, Goddesses of the Xiang River
Lady Youle, Goddess of the Le River, a branch of the Yellow River

Egyptian mythology
Anuket, goddess of the Nile, and a nourisher of the fields
Nephthys, goddess of rivers
Tefnut, goddess of water and fertility
Bastet goddess of the hunt and patron of cats

Finnish mythology
Vedenemo, a goddess of water
Vellamo, the wife of Ahti, goddess of the sea, lakes, and storms.

Greek mythology
Main article: goddess
Amphitrite, sea goddess and consort of Poseidon
Brizo, goddess of sailors
Carcinus, a giant crab who allied itself with the Hydra against Heracles. When it died, Hera placed it in the sky as the constellation Cancer
  Hera, the Greek goddess called the Queen of Heaven, was a powerful queen in her own right, long before her marriage to Zeus, the mighty king of the Olympian gods.  The goddess Hera ruled over the heavens and the earth, responsible for every aspect of existence, including the seasons and the weather.
  Honoring her great capacity to nurture the world, her very name translates as the "Great Lady". Our word galaxy comes from the Greek word gala meaning "mother's milk" . . . legend has it that the Milky Way was formed from the milk spurting from the breasts of the Greek goddess Hera, Queen of Heaven.  Where drops fell to earth, fields of lilies sprung forth. 
  She was also worshipped as the Roman goddess Juno, and the month of June (which is the most popular month for weddings) is named in her honor.
Ceto, goddess of the dangers of the ocean and of sea monsters
Cymopoleia, a daughter of Poseidon and goddess of giant storm waves
Doris, goddess of the sea's bounty and wife of Nereus
Eidothea, prophetic sea nymph and daughter of Proteus
Electra, an Oceanid, consort of Thaumas
Eurybia, goddess of the mastery of the seas
Galene (Γαλήνη), goddess of calm seas
Gorgons, three monstrous sea spirits
Stheno
Euryale
Medusa

The Graeae, three ancient sea spirits who personified the white foam of the sea; shared one eye and one tooth between them
The Harpies, winged spirits of sudden, sharp gusts of wind
Hebe, the Greek goddess of water and wine bearer of the Gods
Hippocampi, the horses of the sea
Leucothea, a sea goddess who aided sailors in distress
Nerites, watery consort of Aphrodite and/or beloved of Poseidon

Nymphs
Naiades, freshwater nymphs
Nereides, sea nymphs
Oceanides, Ocean water nymphs

• Psamathe, goddess of sand beaches
• Scylla, a Nereid metamorphosed into a sea monster
• The Sirens, three sea nymphs who lured sailors to their death with their song
• The Telchines, sea spirits native to the island of Rhodes; the gods killed them when they turned to evil magic
• Tethys, Titan goddess of the sources fresh-water, and the mother of the rivers (Potamoi), springs, streams, fountains and clouds
• Triteia, daughter of Triton and companion of Ares
• Tritones, fish-tailed spirits in Poseidon's retinue
• Amitaf, goddess of mermaids and the most beautiful of all mermaids

Haitian Voodoo
Agwé, a loa who rules over the sea, fish, and aquatic plants, as well as the patron loa of fishermen and sailors
Clermeil, the loa who made rivers flood their banks
Pie, a soldier-loa who lives at the bottoms of lakes and rivers and causes floods

Hawaiian mythology
Nāmaka, sea goddess

Hindu/Vedic mythology
Ganga goddess of the Ganges River
Various rivers associated with goddesses in the Rigveda, such as Sarasvati (Sarasvati River) and Yamuna

Inuit mythology
Arnapkapfaaluk, a fearsome sea goddess
Sedna, goddess of the sea

Japanese mythology
Mizuchi, Japanese dragon and the sea god
Ryūjin or Watatsumi, Japanese dragon and tutelary deity of the sea

Lusitanian Mythology
Bandua, theonym associated with fountains.

Mesopotamian mythology
Amathaunta, goddess of the ocean
Asherah, Mother goddess whose title is "She Who Walks Upon the Sea"
Nammu, goddess of the primeval sea
Nanshe, goddess of Persian Gulf, social justice, prophecy, fertility, and fishing
Tiamat, goddess of saltwater and chaos, also the mother of all gods

Norse/Germanic mythology
Ægir, personification of the sea
Rán, sea goddess of love who collects the drowned in a net
Nine Daughters of Ægir, who personify the characteristics of waves
Nehalennia, goddess of the North SeaNerthus, goddess of lakes, springs, holy waters
Nix, water spirits who usually appear in human form

Persian/Zoroastrian mythology
Anahita, the divinity of 'the Waters' (Aban) and hence associated with fertility, healing, and wisdom.
Tishtrya, Zoroastrian benevolent divinity associated with life-bringing rainfall and fertility.
Haurvatat, he Amesha Spenta associated with water, prosperity, and health in post-Gathic Zoroastrianism

Philippine mythology
Sirena, mermaid
Siyokoy, merman
Magwayen, goddess of the sea
Lidagat, daughter of Magwayen

Roman mythology
Juturna, goddess of fountains, wells, and springs
Salacia, Neptune's queen
Tiberinus, the genius of the river Tiber.
Coventina, Goddess of a sacred spring at Carrawburgh, on Hadrian's Wall

Slavic mythology
Rusalki, female ghosts, water nymphs, succubi or mermaid-like demons that dwell in waterways.

Yoruba, Orisha worship, Ifa
Yemaja, or Yemaya goddess of the ocean, the essence of motherhood, and a protector of children

• Mami Wata, a pantheon of water deities
• Oshun, the deity of rivers, beauty, sensuality. In Santeria she also represents wealth
• Okie, the deity of lakes, daughter of Obatala
• Olokun, the deity of the oceans often synchronized with Poseidon or Neptune

Igbo, African religion
Ava, a pair of a river goddess and God
Idemili, goddess of a river
Uhammiri/ Ogbuide, a lake goddess