Forecast Details for Glyndon, MD

Recent Locations: Ursa, IL   Medford, OR   Glyndon, MD  
Overnight: Showers likely, mainly after 3am. Cloudy, with a low around 57. Southeast wind around 6 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.
Saturday: Showers. High near 62. Southeast wind around 8 mph. Chance of precipitation is 80%. New precipitation amounts between a quarter and half of an inch possible.
Saturday Night: Showers likely, mainly before 8pm. Cloudy, with a low around 55. East wind around 6 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.
Sunday: Partly sunny, with a high near 73. East wind around 8 mph.
Sunday Night: Partly cloudy, with a low around 55. East wind 3 to 7 mph.
Monday: Mostly sunny, with a high near 77.
Monday Night: Mostly clear, with a low around 56.
Tuesday: Sunny, with a high near 79.
Tuesday Night: Mostly clear, with a low around 59.
Wednesday: Mostly sunny, with a high near 83.
Wednesday Night: A chance of showers. Mostly cloudy, with a low around 65. Chance of precipitation is 30%.
Thursday: A chance of showers. Partly sunny, with a high near 83. Chance of precipitation is 50%.
Thursday Night: A chance of showers. Partly cloudy, with a low around 60. Chance of precipitation is 30%.
Friday: Partly 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

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Tomorrows National Weather Map

North America Water Vapor (Moisture)

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North American Water Vapor Map

Weather Topic: What are Mammatus Clouds?

Home - Education - Cloud Types - Mammatus Clouds

Mammatus Clouds Next Topic: Nimbostratus Clouds

A mammatus cloud is a cloud with a unique feature which resembles a web of pouches hanging along the base of the cloud.

In the United States, mammatus clouds tend to form in the warmer months, commonly in the Midwest and eastern regions.

While they usually form at the bottom of a cumulonimbis cloud, they can also form under altostratus, altocumulus, stratocumulus, and cirrus clouds. Mammatus clouds warn that severe weather is close.

Next Topic: Nimbostratus Clouds

Weather Topic: What is Precipitation?

Home - Education - Precipitation - Precipitation

Precipitation Next Topic: Rain

Precipitation can refer to many different forms of water that may fall from clouds. Precipitation occurs after a cloud has become saturated to the point where its water particles are more dense than the air below the cloud.

In most cases, precipitation will reach the ground, but it is not uncommon for precipitation to evaporate before it reaches the earth's surface. When precipitation evaporates before it contacts the ground it is called Virga. Graupel, hail, sleet, rain, drizzle, and snow are forms of precipitation, but fog and mist are not considered precipitation because the water vapor which constitutes them isn't dense enough to fall to the ground.

Next Topic: Rain