Forecast Details for Seattle-Tacoma International Airport, WA

Recent Locations: Los Angeles International Airport, CA London Heathrow Airport, ENG Seattle-Tacoma International Airport, WA

Tonight: A 30 percent chance of rain, mainly between 4am and 5am. Increasing clouds, with a low around 41. South wind around 9 mph.

Friday: Rain, mainly after noon. High near 48. South wind around 9 mph. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.

Friday Night: Rain. Low around 39. South wind around 8 mph. Chance of precipitation is 90%. New precipitation amounts between a tenth and quarter of an inch possible.

Saturday: A 50 percent chance of rain, mainly before 4pm. Mostly cloudy, with a high near 47. South wind around 7 mph becoming north northwest in the afternoon.

Saturday Night: A 20 percent chance of rain before 10pm. Mostly cloudy, with a low around 35. North wind around 8 mph.

Sunday: Mostly sunny, with a high near 46.

Sunday Night: A 30 percent chance of snow after 4am. Partly cloudy, with a low around 33. Little or no snow accumulation expected.

Washington's Birthday: A chance of rain and snow before 10am, then rain likely. Mostly cloudy, with a high near 46.

Monday Night: Rain likely before 10pm, then a chance of rain and snow. Mostly cloudy, with a low around 36.

Tuesday: Rain likely, possibly mixed with snow, becoming all rain after 4pm. Mostly cloudy, with a high near 45.

Tuesday Night: A chance of rain and snow. Mostly cloudy, with a low around 34.

Wednesday: Rain and snow likely. Mostly cloudy, with a high near 44.

Wednesday Night: Rain and snow likely. Mostly cloudy, with a low around 34.

Thursday: Rain and snow likely. Mostly cloudy, with a high near 44.

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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 are Cirrocumulus Clouds?

Home - Education - Cloud Types - Cirrocumulus Clouds

Next Topic: Cirrostratus Clouds

Cirrocumulus clouds form at high altitudes (usually around 5 km) and have distinguishing characteristics displayed in a fine layer of small cloud patches. These small cloud patches are sometimes referred to as "cloudlets" in relation to the whole cloud formation.

Cirrocumulus clouds are formed from ice crystals and water droplets. Often, the water droplets in the cloud freeze into ice crystals and the cloud becomes a cirrostratus cloud. Because of this common occurrence, cirrocumulus cloud formations generally pass rapidly.

Next Topic: Cirrostratus Clouds

Weather Topic: What are Cirrus Clouds?

Home - Education - Cloud Types - Cirrus Clouds

Next Topic: Condensation

Cirrus clouds are high-level clouds that occur above 20,000 feet and are composed mainly of ice crystals. They are thin and wispy in appearance.

What do they indicate?
They are often the first sign of an approaching storm.

Next Topic: Condensation