Forecast Details for Seattle-Tacoma International Airport, WA

Recent Locations: Seattle-Tacoma International Airport, WA  
Overnight: Rain likely. Cloudy, with a low around 41. East wind around 7 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.
Sunday: Rain likely. Cloudy, with a high near 47. Southeast wind around 7 mph. Chance of precipitation is 70%. New precipitation amounts between a quarter and half of an inch possible.
Sunday Night: Rain likely. Cloudy, with a low around 42. East southeast wind around 5 mph. Chance of precipitation is 70%. New precipitation amounts between a tenth and quarter of an inch possible.
Monday: A 50 percent chance of rain. Mostly cloudy, with a high near 49. East southeast wind around 5 mph becoming north northeast in the afternoon.
Monday Night: A 40 percent chance of rain, mainly before 4am. Mostly cloudy, with a low around 41. North wind 3 to 5 mph.
Tuesday: A 20 percent chance of rain before 10am. Mostly cloudy, with a high near 47.
Tuesday Night: A 20 percent chance of rain. Mostly cloudy, with a low around 40.
Wednesday: A slight chance of rain. Mostly cloudy, with a high near 45.
Wednesday Night: A slight chance of rain before 10pm. Mostly cloudy, with a low around 38.
Thanksgiving Day: A slight chance of rain after 10am. Mostly cloudy, with a high near 45.
Thursday Night: A slight chance of rain. Mostly cloudy, with a low around 35.
Friday: A slight chance of rain. Partly sunny, with a high near 44.
Friday Night: A slight chance of rain. Mostly cloudy, with a low around 36.
Saturday: A slight chance of rain and snow. Mostly cloudy, with a high near 45.

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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

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Today's National Weather Map

National Weather Forecast for Tomorrow

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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