Forecast Details for Phoenix Sky Harbor International Airport, AZ

Recent Locations: San Francisco International Airport, CA Phoenix Sky Harbor International Airport, AZ

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Today: Sunny, with a high near 108. East wind around 5 mph becoming west in the afternoon.

Tonight: Mostly clear, with a low around 82. West wind 5 to 10 mph becoming south southeast after midnight.

Saturday: Sunny, with a high near 106. East wind around 5 mph becoming west in the afternoon.

Saturday Night: Mostly clear, with a low around 83. West wind around 5 mph becoming northeast after midnight.

Sunday: Sunny, with a high near 109. East wind around 5 mph becoming west in the afternoon.

Sunday Night: Partly cloudy, with a low around 87. West northwest wind around 5 mph becoming east northeast after midnight.

Monday: Mostly sunny, with a high near 109. Light and variable wind becoming west northwest 5 to 10 mph in the afternoon.

Monday Night: Mostly cloudy, with a low around 88. South wind 5 to 10 mph becoming east in the evening.

Tuesday: Mostly sunny, with a high near 107. East southeast wind 5 to 10 mph becoming west in the afternoon.

Tuesday Night: A 20 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 88. Southwest wind 5 to 10 mph becoming east after midnight.

Wednesday: A 10 percent chance of showers and thunderstorms. Mostly sunny, with a high near 106. East southeast wind 5 to 10 mph becoming west in the afternoon.

Wednesday Night: A 30 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 87. South wind around 10 mph becoming east southeast after midnight.

Thursday: A 20 percent chance of showers and thunderstorms. Mostly sunny, with a high near 105. East wind 5 to 10 mph becoming west southwest in the afternoon.

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National Weather Forecast--Current

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National Weather Forecast for Tomorrow

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North America Water Vapor (Moisture)

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Weather Topic: What are Contrails?

Home - Education - Cloud Types - Contrails

Next Topic: Cumulonimbus Clouds

A contrail is an artificial cloud, created by the passing of an aircraft.

Contrails form because water vapor in the exhaust of aircraft engines is suspended in the air under certain temperatures and humidity conditions. These contrails are called exhaust contrails.

Another type of contrail can form due to a temporary reduction in air pressure moving over the plane's surface, causing condensation. These are called aerodynamic contrails.

When you can see your breath on a cold day, it is also because of condensation. The reason contrails last longer than the condensation from your breath is because the water in contrails freezes into ice particles.

Next Topic: Cumulonimbus Clouds

Weather Topic: What are Cumulus Clouds?

Home - Education - Cloud Types - 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