Forecast Details for Seattle, WA

Recent Locations: Seattle, WA  
Tonight: Snow likely, mainly after 4am. Mostly cloudy, with a low around 33. Light south southeast wind. Chance of precipitation is 60%. Total nighttime snow accumulation of less than a half inch possible.
Saturday: Snow likely before noon, then a chance of rain and snow between noon and 3pm, then a chance of rain after 3pm. Cloudy, with a high near 40. Light and variable wind. Chance of precipitation is 60%. New snow accumulation of less than a half inch possible.
Saturday Night: A chance of rain and snow before 10pm, then a slight chance of snow after 4am. Mostly cloudy, with a low around 33. Calm wind. Chance of precipitation is 30%. Little or no snow accumulation expected.
Sunday: A 30 percent chance of snow, mainly after 10am. Partly sunny, with a high near 40. Calm wind. Little or no snow accumulation expected.
Sunday Night: Partly cloudy, with a low around 28. Calm wind.
Monday: Mostly sunny, with a high near 38.
Monday Night: Mostly clear, with a low around 22.
Tuesday: Sunny, with a high near 37.
Tuesday Night: Mostly clear, with a low around 22.
Wednesday: A slight chance of snow after 4pm. Mostly sunny, with a high near 38.
Wednesday Night: A chance of snow. Mostly cloudy, with a low around 25.
Thursday: A chance of rain and snow. Mostly cloudy, with a high near 39.
Thursday Night: A chance of rain and snow. Mostly cloudy, with a low around 31.
Friday: A chance of rain and snow. Mostly cloudy, with a high near 42.

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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

The Current National Weather Forecast and National Weather Map are shown below.

Today's National Weather Map

National Weather Forecast for Tomorrow

Tomorrow National Weather Forecast and Tomorrow National Weather Map are show below.

Tomorrows National Weather Map

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.

North American Water Vapor Map

Weather Topic: What are Cumulus Clouds?

Home - Education - Cloud Types - Cumulus Clouds

Cumulus Clouds Next Topic: Drizzle

Cumulus clouds are fluffy and textured with rounded tops, and may have flat bottoms. The border of a cumulus cloud is clearly defined, and can have the appearance of cotton or cauliflower.

Cumulus clouds form at low altitudes (rarely above 2 km) but can grow very tall, becoming cumulus congestus and possibly the even taller cumulonimbus clouds. When cumulus clouds become taller, they have a greater chance of producing precipitation.

Next Topic: Drizzle

Weather Topic: What is Evaporation?

Home - Education - Precipitation - Evaporation

Evaporation Next Topic: Fog

Evaporation is the process which returns water from the earth back to the atmosphere, and is another crucial process in the water cycle.

Evaporation is the transformation of liquid into gas, and it happens because molecules are excited by the application of energy and turn into vapor. In order for water to evaporate it has to be on the surface of a body of water.

Next Topic: Fog