Forecast Details for Phoenix, AZ

Recent Locations: Phoenix, AZ  
Tonight: Mostly cloudy, then gradually becoming mostly clear, with a low around 51. Calm wind.
Monday: Sunny, with a high near 76. Calm wind.
Monday Night: Mostly clear, with a low around 49. Calm wind.
Tuesday: Mostly sunny, with a high near 76. Calm wind.
Tuesday Night: Mostly clear, with a low around 47. Calm wind.
Christmas Day: Sunny, with a high near 69. Calm wind.
Wednesday Night: Mostly clear, with a low around 44. Calm wind.
Thursday: Mostly sunny, with a high near 65. Calm wind.
Thursday Night: Mostly clear, with a low around 43. Calm wind.
Friday: Sunny, with a high near 67. Calm wind.
Friday Night: Mostly clear, with a low around 44. Calm wind.
Saturday: Sunny, with a high near 70. Calm wind.
Saturday Night: Partly cloudy, with a low around 46. Calm wind.
Sunday: Mostly sunny, with a high near 73. Calm wind.

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Current U.S. National Radar--Current

The Current National Weather Radar is shown below with a UTC Time (subtract 5 hours from UTC to get Eastern Time).

Current U.S. National Radar

National Weather Forecast--Current

The Current National Weather Forecast and National Weather Map are shown below.

Today's National Weather Map

National Weather Forecast for Tomorrow

Tomorrow National Weather Forecast and Tomorrow National Weather Map are show below.

Tomorrows National Weather Map

North America Water Vapor (Moisture)

This map shows recent moisture content over North America. Bright and colored areas show high moisture (ie, clouds); brown indicates very little moisture present; black indicates no moisture.

North American Water Vapor Map

Weather Topic: What are Cumulus Clouds?

Home - Education - Cloud Types - Cumulus Clouds

Cumulus Clouds Next Topic: Drizzle

Cumulus clouds are fluffy and textured with rounded tops, and may have flat bottoms. The border of a cumulus cloud is clearly defined, and can have the appearance of cotton or cauliflower.

Cumulus clouds form at low altitudes (rarely above 2 km) but can grow very tall, becoming cumulus congestus and possibly the even taller cumulonimbus clouds. When cumulus clouds become taller, they have a greater chance of producing precipitation.

Next Topic: Drizzle

Weather Topic: What is Evaporation?

Home - Education - Precipitation - Evaporation

Evaporation Next Topic: Fog

Evaporation is the process which returns water from the earth back to the atmosphere, and is another crucial process in the water cycle.

Evaporation is the transformation of liquid into gas, and it happens because molecules are excited by the application of energy and turn into vapor. In order for water to evaporate it has to be on the surface of a body of water.

Next Topic: Fog