Forecast Details for Arlington, VA

Recent Locations: Charleston, SC Vancouver, WA Arlington, VA

Overnight: Patchy fog. Otherwise, mostly cloudy, with a low around 49. East wind 6 to 9 mph.

Friday: Areas of fog before 10am. Otherwise, mostly sunny, with a high near 82. South wind 7 to 14 mph, with gusts as high as 23 mph.

Friday Night: A slight chance of showers before 2am. Partly cloudy, with a low around 65. Southwest wind around 8 mph. Chance of precipitation is 20%.

Saturday: A slight chance of showers after 2pm. Mostly sunny, with a high near 86. Southwest wind 6 to 10 mph, with gusts as high as 18 mph. Chance of precipitation is 20%.

Saturday Night: A chance of showers, mainly after 2am. Mostly cloudy, with a low around 63. South wind 11 to 15 mph, with gusts as high as 24 mph. Chance of precipitation is 40%.

Sunday: Showers, mainly between 8am and 2pm. High near 73. Chance of precipitation is 100%.

Sunday Night: A chance of showers before 8pm. Partly cloudy, with a low around 44. Chance of precipitation is 30%.

Monday: Sunny, with a high near 60.

Monday Night: Partly cloudy, with a low around 42.

Tuesday: Mostly sunny, with a high near 56.

Tuesday Night: Mostly clear, with a low around 34.

Wednesday: Sunny, with a high near 55.

Wednesday Night: Mostly clear, with a low around 37.

Thursday: Sunny, with a high near 66.

Want more detail? Get the Complete 7 Day and Night Detailed Forecast!

Current U.S. National Radar--Current

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National Weather Forecast--Current

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National Weather Forecast for Tomorrow

Tomorrow National Weather Forecast and Tomorrow National Weather Map are show below.

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