Forecast Details for Washington, DC

Recent Locations: Washington, DC  
Tonight: A slight chance of showers and thunderstorms before 2am. Partly cloudy, with a low around 77. South wind around 8 mph. Chance of precipitation is 20%.
Tuesday: A slight chance of showers before 11am, then a chance of showers and thunderstorms between 11am and 2pm, then showers likely and possibly a thunderstorm after 2pm. Mostly cloudy, with a high near 89. Southwest wind around 8 mph. Chance of precipitation is 70%. New rainfall amounts between a quarter and half of an inch possible.
Tuesday Night: Showers and thunderstorms likely before 11pm, then a slight chance of showers between 11pm and 2am. Mostly cloudy, then gradually becoming mostly clear, with a low around 69. Northwest wind 5 to 7 mph. Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Wednesday: Sunny, with a high near 86. North wind around 8 mph.
Wednesday Night: Mostly clear, with a low around 66. North wind around 6 mph becoming calm in the evening.
Thursday: Sunny, with a high near 86.
Thursday Night: Mostly clear, with a low around 67.
Friday: Mostly sunny, with a high near 87.
Friday Night: Partly cloudy, with a low around 70.
Saturday: A chance of showers and thunderstorms. Partly sunny, with a high near 85. Chance of precipitation is 50%.
Saturday Night: A chance of showers and thunderstorms. Mostly cloudy, with a low around 71. Chance of precipitation is 50%.
Sunday: Showers likely. Mostly cloudy, with a high near 86. Chance of precipitation is 60%.
Sunday Night: A chance of showers. Mostly cloudy, with a low around 71. Chance of precipitation is 40%.
Monday: A chance of showers and thunderstorms. Mostly cloudy, with a high near 87. Chance of precipitation is 50%.

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Weather Topic: What are Nimbostratus Clouds?

Home - Education - Cloud Types - Nimbostratus Clouds

nimbostratus clouds Next Topic: Stratocumulus Clouds

A nimbostratus cloud is similar to a stratus cloud in its formless, smooth appearance. However, a nimbostratus cloud is darker than a stratus cloud, because it is thicker.

Unlike a stratus cloud, a nimbostratus cloud typically brings with it the threat of moderate to heavy precipitation. In some cases, the precipitation may evaporate before reaching the ground, a phenomenon known as virga.

Next Topic: Stratocumulus Clouds

Weather Topic: What are Contrails?

Home - Education - Cloud Types - Contrails

contrails Next Topic: Fog

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: Fog