ANSWER: Before we cover what God's word has to say about astrology and seeking to predict the future through the heavens, let us take a brief look at its origin. Although not found in scripture, the belief system that underlies predicting the future via the stars began in ancient Mesopotamia among the Babylonians. The Encyclopedia Britannica says this occurred in the third millennium B.C. while the International Bible Encyclopedia does not quite agree. They quote a warning based on the stars given to King Ashurbanipal of Assyria (7th century B.C.).
"The planet Venus is approaching the constellation Virgo. The appearance of the planet Mercury is near. Great wrath will come."
The Britannica states the current form of horoscopes is really a Greek addition to these earlier ideas, such as seeing the sun's path in the sky move through the twelve houses from east to west, which are each named for a constellation or sign of the zodiac (the Bible alludes to the zodiac in Job 38:32, etc.). Ptolemy (c. 150 A.D.), the ancient Greek astronomer who put into place the system of earth-centered astronomy, wrote a major book on this subject. Interestingly, the word horoscope is a word derived from the Greek meaning "one who observes the hour."
The scriptures do make references to astrologers serving at the court of Nebuchadnezzar (see Daniel 2:27, 4:7).
The idea that heavenly bodies control our destiny, rather than the true God, is an ancient delusion. Augustine, the famous Catholic theologian and philosopher who lived when Rome was in decline, and Cicero, the pagan orator of the Roman Republic in the first century B.C., made a point of attacking belief in it. Sadly, many people still believe these false concepts at some level. Ironically, the Asiatic Indians have updated their charts to fit in with the stars' current positions, but Western astrologers still use the ancient positions. And, each method claims great success in their predictions!
Astrology, as one would expect, is rejected entirely by God's word. In fact, it considers consulting the heavens for guidance as a form of sorcery (Leviticus 19:26 - 28, 31; 20:6). God warned ancient Babylon about trusting in astrologers when he said, "You are wearied in the multitude of your counsels; Let now the astrologers, the stargazers, and the monthly prognosticators stand up and save you from what shall come upon you" (Isaiah 47:13).
God specifically condemns those who use the heavens to predict the future, "There shall not be found among you [any one] . . . that useth divination, [or] an observer of times, or an enchanter, or a witch . . . " (Deuteronomy 18:10, KJV). A person who is an 'observer of times,' according John Wesley's Explanatory Notes, is someone who superstitiously pronounces some days as lucky and others as unlucky. Adam Clarke's Commentary on the Bible states that astrology pretends to foretell future events by (among other things) the aspects of the planets.
In the end, pursuing astrology should be avoided completely. If nothing else, basing one's decisions and actions on celestial bodies millions and billions of light years away is a waste of time, for God says in the Bible, 'Do not be dismayed at the signs of heaven . . . for the customs of the peoples are FUTILE' (Jeremiah 10:2 - 3).