Forecast Details for Philadelphia International Airport, PA

Recent Locations: Paris - Charles-de-Gaulle, A8 Amsterdam Airport Schiphol, 07 Philadelphia International Airport, PA

Today: A chance of showers before 8am, then a chance of showers after 2pm. The rain could be heavy at times. Mostly cloudy, with a high near 76. Southwest wind 10 to 15 mph, with gusts as high as 30 mph. Chance of precipitation is 30%. New precipitation amounts between a tenth and quarter of an inch possible.

Tonight: Showers and possibly a thunderstorm before 2am, then showers likely. Some of the storms could produce heavy rainfall. Low around 43. Southwest wind 5 to 15 mph becoming northwest after midnight. Chance of precipitation is 100%. New rainfall amounts between 1 and 2 inches possible.

Tuesday: Partly sunny, then gradually becoming sunny, with a high near 58. Northwest wind around 15 mph, with gusts as high as 25 mph.

Tuesday Night: Mostly clear, with a low around 38. North wind around 5 mph.

Wednesday: Partly sunny, with a high near 56. Northeast wind 5 to 15 mph becoming southeast in the afternoon.

Wednesday Night: A chance of showers, mainly after 2am. Mostly cloudy, with a low around 47. Chance of precipitation is 30%.

Thursday: A chance of showers before 8am, then a chance of showers after 2pm. Mostly cloudy, with a high near 78. Breezy. Chance of precipitation is 30%.

Thursday Night: A chance of showers and thunderstorms before 8pm, then showers likely and possibly a thunderstorm between 8pm and 2am, then showers likely after 2am. Mostly cloudy, with a low around 64. Chance of precipitation is 70%.

Friday: A chance of showers before 2pm. Mostly cloudy, with a high near 75. Chance of precipitation is 50%.

Friday Night: A chance of showers after 2am. Mostly cloudy, with a low around 50. Chance of precipitation is 30%.

Saturday: Showers likely. Mostly cloudy, with a high near 58. Chance of precipitation is 60%.

Saturday Night: Showers likely. Mostly cloudy, with a low around 46. Chance of precipitation is 70%.

Sunday: A chance of showers. Mostly cloudy, with a high near 64. Chance of precipitation is 50%.

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North America Water Vapor (Moisture)

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Weather Topic: What are Cirrus Clouds?

Home - Education - Cloud Types - Cirrus Clouds

Next Topic: Condensation

Cirrus clouds are high-level clouds that occur above 20,000 feet and are composed mainly of ice crystals. They are thin and wispy in appearance.

What do they indicate?
They are often the first sign of an approaching storm.

Next Topic: Condensation

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