* Moon Phases: The moon goes through phases, from a new moon (invisible) to a full moon (bright and round). If it's a new moon, you won't see it in the sky.
* Time of Day: Even if it's not a new moon, the moon might be below the horizon, depending on your location and the time of day.
* Weather: Cloudy skies can obscure the moon, even if it's visible.
To figure out why you can't see the moon tonight, tell me:
* Your location: Where in the world are you?
* The time: What time is it right now?
Once I have that information, I can tell you what phase the moon is in and whether it should be visible in your sky.
