Forecast Details for Washington, DC

Recent Locations: Washington, DC

Tonight: Rain. Patchy fog between midnight and 5am. Low around 43. North wind around 8 mph. Chance of precipitation is 100%. New precipitation amounts between a half and three quarters of an inch possible.

Monday: Rain likely, mainly before 11am. Patchy fog between noon and 1pm. Otherwise, cloudy, with a high near 52. Northeast wind 5 to 8 mph. Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch possible.

Monday Night: A slight chance of showers before 2am. Patchy fog between 9pm and 10pm. Otherwise, cloudy, then gradually becoming partly cloudy, with a low around 35. Light west wind becoming northwest 8 to 13 mph in the evening. Winds could gust as high as 18 mph. Chance of precipitation is 20%.

Tuesday: Sunny, with a high near 48. Northwest wind 15 to 17 mph, with gusts as high as 31 mph.

Tuesday Night: Mostly clear, with a low around 31. Northwest wind 6 to 13 mph.

Wednesday: Sunny, with a high near 55.

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

Thursday: A chance of showers. Mostly cloudy, with a high near 62. Chance of precipitation is 40%.

Thursday Night: Showers likely, mainly before 2am. Mostly cloudy, with a low around 49. Chance of precipitation is 70%.

Friday: Showers likely, mainly after 2pm. Mostly cloudy, with a high near 62. Chance of precipitation is 60%.

Friday Night: Showers likely. Mostly cloudy, with a low around 46. Chance of precipitation is 60%.

Saturday: A chance of showers. Partly sunny, with a high near 60. Chance of precipitation is 30%.

Saturday Night: Mostly cloudy, with a low around 44.

Sunday: Mostly sunny, with a high near 63.

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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)

This map shows recent moisture content over North America. Bright and colored areas show high moisture (ie, clouds); brown indicates very little moisture present; black indicates no moisture.

Weather Topic: What is Condensation?

Home - Education - Precipitation - Condensation

Next Topic: Contrails

Condensation is the process which creates clouds, and therefore it is a crucial process in the water cycle. Condensation is the change of matter from a state of gas into a state of liquid, and it happens because water molecules release heat into the atmosphere and become organized into a more closely packed structure, what we might see as water droplets.

Water is always present in the air around us as a vapor, but it's too small for us to see. When water undergoes the process of condensation it becomes organized into visible water droplets. You've probably seen condensation happen before on the surface of a cold drink!

Next Topic: Contrails

Weather Topic: What are Cumulonimbus Clouds?

Home - Education - Cloud Types - Cumulonimbus Clouds

Cumulonimbus Clouds Next Topic: Cumulus Clouds

The final form taken by a growing cumulus cloud is the cumulonimbus cloud, which is very tall and dense. The tower of a cumulonimbus cloud can soar 23 km into the atmosphere, although most commonly they stop growing at an altitude of 6 km.

Even small cumulonimbus clouds appear very large in comparison to other cloud types. They can signal the approach of stormy weather, such as thunderstorms or blizzards.

Next Topic: Cumulus Clouds