Forecast Details for Lebanon, OR

Recent Locations: Shedd, OR Denver, CO Lebanon, OR

Current Alerts for Lebanon, OR: Winter Storm Warning

Tonight: Rain and possibly a thunderstorm. Snow level 2300 feet. Low around 39. South southwest wind around 9 mph, with gusts as high as 20 mph. Chance of precipitation is 100%. New precipitation amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

Thursday: Rain likely before 3pm. Snow level 2300 feet rising to 3400 feet in the afternoon. Partly sunny, with a high near 54. Southwest wind 5 to 7 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.

Thursday Night: Patchy fog after 1am. Patchy frost after 2am. Otherwise, partly cloudy, with a low around 34. West southwest wind around 5 mph becoming calm in the evening.

Friday: Patchy fog before 9am. Patchy frost before 9am. Otherwise, sunny, with a high near 60. Calm wind becoming north northwest around 5 mph in the afternoon.

Friday Night: Patchy fog after 5am. Patchy frost after 5am. Otherwise, clear, with a low around 36. North wind around 6 mph becoming calm in the evening.

Saturday: Patchy fog before 8am. Otherwise, sunny, with a high near 68.

Saturday Night: Partly cloudy, with a low around 41.

Sunday: Mostly sunny, with a high near 72.

Sunday Night: Partly cloudy, with a low around 45.

Monday: Partly sunny, with a high near 72.

Monday Night: Partly cloudy, with a low around 44.

Tuesday: A chance of rain. Partly sunny, with a high near 66.

Tuesday Night: A chance of rain. Mostly cloudy, with a low around 41.

Wednesday: A chance of rain. Partly sunny, with a high near 60.

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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

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North America Water Vapor (Moisture)

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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

Weather Topic: What are Contrails?

Home - Education - Cloud Types - 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