Forecast Details for Philadelphia International Airport, PA

Recent Locations: Philadelphia International Airport, PA  
Tonight: Areas of frost after 2am. Otherwise, partly cloudy, with a low around 36. Southeast wind around 5 mph becoming calm in the evening.
Friday: Areas of frost before 9am. Otherwise, sunny, with a high near 63. Northeast wind 5 to 10 mph becoming southeast in the afternoon.
Friday Night: Increasing clouds, with a low around 40. Southeast wind 5 to 10 mph.
Saturday: Partly sunny, with a high near 63. South wind 5 to 10 mph.
Saturday Night: Mostly cloudy, with a low around 49. South wind around 10 mph.
Sunday: Partly sunny, with a high near 78.
Sunday Night: Partly cloudy, with a low around 59.
Monday: Mostly sunny, with a high near 86.
Monday Night: Partly cloudy, with a low around 62.
Tuesday: A chance of showers after 2pm. Mostly sunny, with a high near 83. Chance of precipitation is 30%.
Tuesday Night: A chance of showers. Mostly cloudy, with a low around 60. Chance of precipitation is 30%.
Wednesday: Mostly sunny, with a high near 79.
Wednesday Night: Mostly clear, with a low around 57.
Thursday: Sunny, with a high near 77.

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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 are Wall Clouds?

Home - Education - Cloud Types - Wall Clouds

Wall Clouds Next Topic: Altocumulus Clouds

A wall cloud forms underneath the base of a cumulonimbus cloud, and can be a hotbed for deadly tornadoes.

Wall clouds are formed by air flowing into the cumulonimbus clouds, which can result in the wall cloud descending from the base of the cumulonimbus cloud, or rising fractus clouds which join to the base of the storm cloud as the wall cloud takes shape.

Wall clouds can be very large, and in the Northern Hemisphere they generally form at the southern edge of cumulonimbus clouds.

Next Topic: Altocumulus Clouds

Weather Topic: What are Altostratus Clouds?

Home - Education - Cloud Types - Altostratus Clouds

Altostratus Clouds Next Topic: Cirrocumulus Clouds

Altostratus clouds form at mid to high-level altitudes (between 2 and 7 km) and are created by a warm, stable air mass which causes water vapor to condense as it rise through the atmosphere. Usually altostratus clouds are featureless sheets characterized by a uniform color.

In some cases, wind punching through the cloud formation may give it a waved appearance, called altostratus undulatus. Altostratus clouds are commonly seen with other cloud formations accompanying them.

Next Topic: Cirrocumulus Clouds