Forecast Details for Arlington, VA

Recent Locations: San Jose, CA Nashville, TN Arlington, VA

Today: Sunny, with a high near 32. North wind around 7 mph.

Tonight: Mostly cloudy, with a low around 19. Northwest wind 3 to 5 mph.

Friday: A chance of snow showers after 1pm. Increasing clouds, with a high near 34. Calm wind becoming south around 6 mph in the afternoon. Chance of precipitation is 30%.

Friday Night: A slight chance of snow showers before 1am. Cloudy, then gradually becoming partly cloudy, with a low around 15. Blustery, with a light and variable wind becoming northwest 15 to 20 mph in the evening. Winds could gust as high as 38 mph. Chance of precipitation is 20%.

Saturday: Sunny, with a high near 23. Windy, with a northwest wind around 31 mph, with gusts as high as 48 mph.

Saturday Night: Mostly clear, with a low around 9. Blustery.

Sunday: Mostly sunny, with a high near 23.

Sunday Night: Partly cloudy, with a low around 14.

Monday: Partly sunny, with a high near 35.

Monday Night: Mostly cloudy, with a low around 24.

Tuesday: Mostly sunny, with a high near 43.

Tuesday Night: Mostly cloudy, with a low around 29.

Wednesday: Mostly cloudy, with a high near 44.

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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