Forecast Details for Tacoma, WA

Recent Locations: Ontario, CA Allentown, PA Tacoma, WA

Tonight: A 30 percent chance of rain, mainly after 5am. Increasing clouds, with a low around 44. Calm wind becoming south southwest 5 to 7 mph in the evening.

Saturday: Rain. High near 53. South wind 11 to 15 mph, with gusts as high as 20 mph. Chance of precipitation is 100%. New precipitation amounts between a quarter and half of an inch possible.

Saturday Night: Rain likely, mainly before 10pm. Cloudy, with a low around 45. South southwest wind 3 to 7 mph. Chance of precipitation is 70%. New precipitation amounts between a tenth and quarter of an inch possible.

Sunday: Rain likely, mainly after 10am. Cloudy, with a high near 50. Calm wind becoming north around 5 mph in the afternoon. Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch possible.

Sunday Night: Rain likely, mainly before 10pm. Cloudy, with a low around 42. South southwest wind around 7 mph. Chance of precipitation is 70%. New precipitation amounts between a tenth and quarter of an inch possible.

Monday: Rain likely, mainly before 4pm. Mostly cloudy, with a high near 50. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.

Monday Night: A 30 percent chance of rain, mainly before 10pm. Mostly cloudy, with a low around 37.

Tuesday: A slight chance of rain. Mostly sunny, with a high near 50.

Tuesday Night: Partly cloudy, with a low around 37.

Wednesday: Partly sunny, with a high near 50.

Wednesday Night: A slight chance of rain. Mostly cloudy, with a low around 39.

Thursday: A chance of rain. Mostly cloudy, with a high near 50.

Thursday Night: A chance of rain. Mostly cloudy, with a low around 40.

Friday: Rain likely. Mostly cloudy, with a high near 48.

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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 Precipitation?

Home - Education - 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

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