The Dew Point is the temperature at which the air is at 100% Relative Humidity. If the temperature fall below the Dew Point, then there is more moisture in the air than it can hold, and water condenses in the form of dew, mist, rain, etc.
The temperature at which the air is saturated with water vapour and condenses to form dew or frost.
Water can start to condense from the air when the temperatures drop below the dew point. It happens when the ground is cold or when the air above the sky is cold.
When the dew point goes below freezing, the more applicable temperature is the frost point, at which water vapor will freeze out of the air. The frost point is higher than the dew point, because ice holds water molecules better than liquid water.
there will be no precipitation in the morning
Dew point
At temperatures below the dew point there is less evaporation than condensation. Drops and droplets condense and grow. At temperatures above the dew point there is more evaporation than condensation, drops and droplets evaporate.
Water can start to condense from the air when the temperatures drop below the dew point. It happens when the ground is cold or when the air above the sky is cold.
when the temperature of the rising air falls below the dew point
The dew point is the varying temperature at which atmospheric humidity condenses. If the air temperature drops below the dew point, dew and condensation form.
supercooled
Cooling air below the dew point will result in the water in that air coming out of solution to deposit itself on surfaces. We call that dew. Certainly as the temperature continues to fall, it may even cause rain (if it isn't too cold).
Water vapour falls below the dew point (and comes out of solution in air).
When water vapor reaches its dew point it then becomes saturated. Either the vapor falls as rain, or if it is a cool clear night it forms as dew on surfaces. if the surface is cold enough it can also form as frost.
When the dew point goes below freezing, the more applicable temperature is the frost point, at which water vapor will freeze out of the air. The frost point is higher than the dew point, because ice holds water molecules better than liquid water.
The dew point is a measure of the amount of water vapor in the atmosphere. As the temperature gets closer to the dew point, the humidity rises. When the temperature finally drops to the dew point (100% humidity), the the atmosphere is completely saturated with water, and it will start to rain (or snow, if the dew point is below freezing). Since the atmosphere is completely saturated when the temperature is at the dew point, it cannot go below the dew point.
It stays at 100%.
Condensation and dew point have a great relationship. Condensation is what happens when dew point temperatures have been reached in an environment.
frost will form on cold surfaces