Forecast Details for Alexandria, VA

Recent Locations: Alexandria, VA

Tonight: Partly cloudy, with a low around 65. Calm wind becoming north 5 to 9 mph after midnight.

Friday: Mostly sunny, with a high near 80. East wind 9 to 13 mph, with gusts as high as 20 mph.

Friday Night: A chance of showers, mainly after 11pm. Mostly cloudy, with a low around 54. East wind 7 to 10 mph. Chance of precipitation is 40%.

Saturday: A chance of showers. Cloudy, with a high near 68. East wind 7 to 9 mph. Chance of precipitation is 40%.

Saturday Night: Showers likely, then showers and possibly a thunderstorm after 11pm. Low around 58. East wind 9 to 11 mph. Chance of precipitation is 80%.

Sunday: Showers, with thunderstorms also possible after 2pm. High near 73. Chance of precipitation is 80%.

Sunday Night: A chance of showers and thunderstorms before 2am. Mostly cloudy, with a low around 64. Chance of precipitation is 40%.

Monday: A chance of showers and thunderstorms after 2pm. Mostly cloudy, with a high near 80. Chance of precipitation is 40%.

Monday Night: A chance of showers and thunderstorms before 2am. Mostly cloudy, with a low around 64. Chance of precipitation is 40%.

Tuesday: A chance of showers and thunderstorms after 2pm. Partly sunny, with a high near 83. Chance of precipitation is 40%.

Tuesday Night: A chance of showers and thunderstorms. Partly cloudy, with a low around 66. Chance of precipitation is 30%.

Wednesday: A chance of showers and thunderstorms. Partly sunny, with a high near 88. Chance of precipitation is 30%.

Wednesday Night: A chance of showers and thunderstorms. Partly cloudy, with a low around 67. Chance of precipitation is 40%.

Thursday: A chance of showers and thunderstorms. Partly sunny, with a high near 87. Chance of precipitation is 40%.

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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 Shelf Clouds?

Home - Education - Cloud Types - Shelf Clouds

Shelf Clouds Next Topic: Sleet

A shelf cloud is similar to a wall cloud, but forms at the front of a storm cloud, instead of at the rear, where wall clouds form.

A shelf cloud is caused by a series of events set into motion by the advancing storm; first, cool air settles along the ground where precipitation has just fallen. As the cool air is brought in, the warmer air is displaced, and rises above it, because it is less dense. When the warmer air reaches the bottom of the storm cloud, it begins to cool again, and the resulting condensation is a visible shelf cloud.

Next Topic: Sleet

Weather Topic: What is Snow?

Home - Education - Precipitation - Snow

Snow Next Topic: Stratocumulus Clouds

Snow is precipitation taking the form of ice crystals. Each ice crystal, or snowflake, has unique characteristics, but all of them grow in a hexagonal structure. Snowfall can last for sustained periods of time and result in significant buildup of snow on the ground.

On the earth's surface, snow starts out light and powdery, but as it begins to melt it tends to become more granular, producing small bits of ice which have the consistency of sand. After several cycles of melting and freezing, snow can become very dense and ice-like, commonly known as snow pack.

Next Topic: Stratocumulus Clouds