Forecast Details for Phoenix, AZ

Recent Locations: Phoenix, AZ  
Overnight: Partly cloudy, with a low around 74. Calm wind.
Saturday: Sunny, with a high near 101. Breezy, with an east southeast wind 5 to 10 mph becoming west southwest 10 to 15 mph in the afternoon. Winds could gust as high as 25 mph.
Saturday Night: Mostly clear, with a low around 74. Breezy, with a west southwest wind 5 to 15 mph becoming south after midnight. Winds could gust as high as 20 mph.
Sunday: Sunny, with a high near 95. Breezy, with a southwest wind 5 to 10 mph increasing to 10 to 15 mph in the afternoon. Winds could gust as high as 25 mph.
Sunday Night: Clear, with a low around 71. Southwest wind 5 to 10 mph.
Memorial Day: Sunny, with a high near 94. South southwest wind 5 to 10 mph, with gusts as high as 20 mph.
Monday Night: Clear, with a low around 68. West wind 5 to 10 mph becoming light and variable in the evening.
Tuesday: Sunny, with a high near 98. Calm wind becoming west southwest around 5 mph in the afternoon.
Tuesday Night: Clear, with a low around 71. West northwest wind around 5 mph becoming calm.
Wednesday: Sunny, with a high near 104. Calm wind becoming west around 5 mph in the afternoon.
Wednesday Night: Mostly clear, with a low around 75. West wind around 5 mph becoming calm in the evening.
Thursday: Sunny, with a high near 107. East wind 5 to 10 mph becoming west southwest in the afternoon.
Thursday Night: Clear, with a low around 78. West southwest wind around 5 mph becoming calm after midnight.
Friday: Sunny, with a high near 107. East southeast wind 5 to 10 mph becoming west southwest in the afternoon.

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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 is Condensation?

Home - Education - Precipitation - Condensation

Condensation Next Topic: Contrails

Condensation is the process which creates clouds, and therefore it is a crucial process in the water cycle. Condensation is the change of matter from a state of gas into a state of liquid, and it happens because water molecules release heat into the atmosphere and become organized into a more closely packed structure, what we might see as water droplets.

Water is always present in the air around us as a vapor, but it's too small for us to see. When water undergoes the process of condensation it becomes organized into visible water droplets. You've probably seen condensation happen before on the surface of a cold drink!

Next Topic: Contrails

Weather Topic: What are Cumulonimbus Clouds?

Home - Education - Cloud Types - Cumulonimbus Clouds

Cumulonimbus Clouds Next Topic: Cumulus Clouds

The final form taken by a growing cumulus cloud is the cumulonimbus cloud, which is very tall and dense. The tower of a cumulonimbus cloud can soar 23 km into the atmosphere, although most commonly they stop growing at an altitude of 6 km.

Even small cumulonimbus clouds appear very large in comparison to other cloud types. They can signal the approach of stormy weather, such as thunderstorms or blizzards.

Next Topic: Cumulus Clouds