Forecast Details for Phoenix, AZ

Recent Locations: Phoenix, AZ  
Tonight: Mostly cloudy, with a low around 61. Calm wind.
Monday: Mostly cloudy, with a high near 78. Light and variable wind becoming southwest 5 to 10 mph in the afternoon.
Monday Night: Mostly cloudy, with a low around 57. West southwest wind 5 to 10 mph becoming light southwest after midnight.
Tuesday: A 20 percent chance of showers. Mostly sunny, with a high near 74. Breezy, with a south wind 5 to 15 mph, with gusts as high as 20 mph.
Tuesday Night: Mostly clear, with a low around 52. West wind 5 to 10 mph becoming light and variable after midnight.
Wednesday: Sunny, with a high near 75. East wind 5 to 10 mph.
Wednesday Night: Mostly clear, with a low around 51. Northwest wind around 5 mph becoming northeast after midnight.
Thursday: Sunny, with a high near 78. East northeast wind around 5 mph becoming south southwest in the afternoon.
Thursday Night: Clear, with a low around 52. West wind around 5 mph becoming east northeast after midnight.
Friday: Sunny, with a high near 81. East wind 5 to 10 mph becoming south southwest in the afternoon.
Friday Night: Clear, with a low around 52. West southwest wind 5 to 10 mph becoming east southeast after midnight.
Saturday: Sunny, with a high near 78. Breezy, with an east southeast wind 5 to 15 mph becoming southwest in the afternoon. Winds could gust as high as 20 mph.
Saturday Night: A 30 percent chance of showers. Partly cloudy, with a low around 50. Breezy, with a southwest wind 10 to 15 mph, with gusts as high as 20 mph.
Sunday: A 30 percent chance of showers. Mostly sunny, with a high near 68. Breezy, with a southwest wind 10 to 15 mph, with gusts as high as 25 mph.

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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

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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 Rain?

Home - Education - Precipitation - Rain

Rain Next Topic: Shelf Clouds

Precipitation in the form of water droplets is called rain. Rain generally has a tendency to fall with less intensity over a greater period of time, and when rainfall is more severe it is usually less sustained.

Rain is the most common form of precipitation and happens with greater frequency depending on the season and regional influences. Cities have been shown to have an observable effect on rainfall, due to an effect called the urban heat island. Compared to upwind, monthly rainfall between twenty and forty miles downwind of cities is 30% greater.

Next Topic: Shelf Clouds

Weather Topic: What is Sleet?

Home - Education - Precipitation - Sleet

Sleet Next Topic: Snow

Sleet is a form of precipitation in which small ice pellets are the primary components. These ice pellets are smaller and more translucent than hailstones, and harder than graupel. Sleet is caused by specific atmospheric conditions and therefore typically doesn't last for extended periods of time.

The condition which leads to sleet formation requires a warmer body of air to be wedged in between two sub-freezing bodies of air. When snow falls through a warmer layer of air it melts, and as it falls through the next sub-freezing body of air it freezes again, forming ice pellets known as sleet. In some cases, water droplets don't have time to freeze before reaching the surface and the result is freezing rain.

Next Topic: Snow