Forecast Details for Tualatin, OR

Recent Locations: Siler, KY   Tualatin, OR  
Current Alerts for Tualatin, OR: Hydrologic Outlook
Tonight: A 30 percent chance of rain, mainly after 4am. Mostly cloudy, with a low around 56. West southwest wind 3 to 7 mph.
Sunday: Rain, mainly after 8am. High near 63. Breezy, with a south wind 9 to 16 mph, with gusts as high as 28 mph. Chance of precipitation is 100%. New precipitation amounts between a quarter and half of an inch possible.
Sunday Night: Rain. Low around 55. South southwest wind 7 to 13 mph, with gusts as high as 20 mph. Chance of precipitation is 100%. New precipitation amounts between a half and three quarters of an inch possible.
Monday: Rain before 7am, then showers, mainly between 7am and 11am. High near 64. Southwest wind 9 to 13 mph, with gusts as high as 20 mph. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.
Monday Night: Showers likely, mainly after 11pm. Mostly cloudy, with a low around 52. South wind 6 to 10 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.
Tuesday: Showers likely. Mostly cloudy, with a high near 68. Chance of precipitation is 60%.
Tuesday Night: A 30 percent chance of showers before 11pm. Mostly cloudy, with a low around 51.
Wednesday: Mostly sunny, with a high near 76.
Wednesday Night: Mostly clear, with a low around 52.
Thursday: Sunny, with a high near 84.
Thursday Night: Mostly clear, with a low around 56.
Friday: Sunny, with a high near 87.
Friday Night: Partly cloudy, with a low around 58.
Saturday: Mostly sunny, with a high near 85.

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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)

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North American Water Vapor Map

Weather Topic: What are Contrails?

Home - Education - Cloud Types - Contrails

Contrails Next Topic: Cumulonimbus Clouds

A contrail is an artificial cloud, created by the passing of an aircraft.

Contrails form because water vapor in the exhaust of aircraft engines is suspended in the air under certain temperatures and humidity conditions. These contrails are called exhaust contrails.

Another type of contrail can form due to a temporary reduction in air pressure moving over the plane's surface, causing condensation. These are called aerodynamic contrails.

When you can see your breath on a cold day, it is also because of condensation. The reason contrails last longer than the condensation from your breath is because the water in contrails freezes into ice particles.

Next Topic: Cumulonimbus Clouds

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