Forecast Details for Eugene, OR

Recent Locations: Montgomery, AL Lansing, MI Eugene, OR

Current Alerts for Eugene, OR: Winter Storm Warning

This Afternoon: Rain before 2pm, then showers and possibly a thunderstorm, mainly after 2pm. High near 52. West southwest wind 11 to 14 mph, with gusts as high as 25 mph. Chance of precipitation is 100%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

Tonight: Showers and possibly a thunderstorm, mainly before 5am, then rain and possibly a thunderstorm after 5am. Snow level 2700 feet lowering to 2200 feet after midnight . Low around 39. South southwest wind around 10 mph, with gusts as high as 18 mph. Chance of precipitation is 90%. New rainfall amounts between a quarter and half of an inch possible.

Thursday: Rain and thunderstorms before 2pm, then a slight chance of rain between 2pm and 3pm. Snow level 2500 feet rising to 3500 feet in the afternoon. High near 55. Southwest wind around 7 mph. Chance of precipitation is 80%.

Thursday Night: Patchy frost after 2am. Otherwise, mostly clear, with a low around 33. West southwest wind around 5 mph becoming calm in the evening.

Friday: Areas of frost before 9am. Otherwise, sunny, with a high near 62. Calm wind becoming north around 6 mph in the afternoon.

Friday Night: Patchy frost after 5am. Otherwise, clear, with a low around 36.

Saturday: Sunny, with a high near 68.

Saturday Night: Partly cloudy, with a low around 42.

Sunday: Mostly sunny, with a high near 73.

Sunday Night: Partly cloudy, with a low around 47.

Monday: Partly sunny, with a high near 73.

Monday Night: Mostly cloudy, with a low around 45.

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

Want more detail? Get the Complete 7 Day and Night Detailed Forecast!

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)

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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