Forecast Details for Chevy Chase, MD

Recent Locations: Hatley, WI Veradale, WA Chevy Chase, MD

Current Alerts for Chevy Chase, MD: Unnamed Alert

Tonight: Showers and possibly a thunderstorm before 11pm, then scattered showers and thunderstorms between 11pm and 2am, then isolated showers after 2am. Patchy fog after 5am. Low around 62. West wind around 6 mph becoming light and variable in the evening. Chance of precipitation is 80%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

Thursday: A chance of showers, with thunderstorms also possible after 5pm. Patchy fog before 11am. Otherwise, partly sunny, with a high near 76. East wind 5 to 8 mph. Chance of precipitation is 30%.

Thursday Night: A chance of showers and thunderstorms before 8pm. Mostly cloudy, with a low around 53. East wind 6 to 10 mph, with gusts as high as 18 mph. Chance of precipitation is 30%.

Friday: Mostly sunny, with a high near 82. Southwest wind 7 to 13 mph, with gusts as high as 23 mph.

Friday Night: Mostly cloudy, with a low around 65. Southwest wind 7 to 9 mph.

Saturday: Mostly sunny, with a high near 85.

Saturday Night: A chance of showers after 2am. Partly cloudy, with a low around 63. Chance of precipitation is 30%.

Sunday: Showers, mainly after 8am. High near 72. Chance of precipitation is 80%.

Sunday Night: Mostly cloudy, with a low around 42.

Monday: Sunny, with a high near 59.

Monday Night: Partly cloudy, with a low around 41.

Tuesday: Mostly sunny, with a high near 58.

Tuesday Night: Partly cloudy, with a low around 34.

Wednesday: Sunny, with a high near 55.

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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

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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