Forecast Details for Beaverton, OR

Recent Locations: Lignite, ND Waskom, TX Beaverton, OR

Tonight: Rain likely, mainly before 5am. Patchy fog after 5am. Otherwise, cloudy, with a low around 46. South wind 5 to 8 mph becoming calm after midnight. Chance of precipitation is 60%. New precipitation amounts between a quarter and half of an inch possible.

Sunday: Rain, mainly before 3pm. Patchy fog before 10am. High near 52. Calm wind becoming west around 5 mph in the afternoon. Chance of precipitation is 90%. New precipitation amounts between a quarter and half of an inch possible.

Sunday Night: Rain. Low around 42. Light south southwest wind. Chance of precipitation is 90%. New precipitation amounts between a tenth and quarter of an inch possible.

Monday: Rain likely, mainly before 10am. Partly sunny, with a high near 54. South southwest wind 3 to 6 mph. Chance of precipitation is 60%.

Monday Night: Partly cloudy, with a low around 37. Calm wind.

Tuesday: Partly sunny, with a high near 54.

Tuesday Night: Mostly clear, with a low around 35.

Wednesday: Mostly sunny, with a high near 53.

Wednesday Night: Mostly cloudy, with a low around 37.

Thursday: A slight chance of rain. Mostly cloudy, with a high near 54.

Thursday Night: A chance of rain. Mostly cloudy, with a low around 39.

Friday: Rain likely. Mostly cloudy, with a high near 51.

Friday Night: A chance of rain. Mostly cloudy, with a low around 36.

Saturday: A chance of rain. Snow level 2000 feet. Mostly cloudy, with a high near 50.

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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 Hole Punch Clouds?

Home - Education - Cloud Types - Hole Punch Clouds

Hole Punch Clouds Next Topic: Mammatus Clouds

A hole punch cloud is an unusual occurrence when a disk-shaped hole appears in a cirrostratus, cirrocumulus, or altocumulus cloud.

When part of the cloud forms ice crystals, water droplets in the surrounding area of the cloud evaporate. The effect of this process produces a large elliptical gap in the cloud. The hole punch cloud formation is rare, but it is not specific to any geographic area.

Other names which have been used to describe this phenomena include fallstreak hole, skypunch, and cloud hole.

Next Topic: Mammatus Clouds

Weather Topic: What are Nimbostratus Clouds?

Home - Education - Cloud Types - Nimbostratus Clouds

Nimbostratus Clouds Next Topic: Precipitation

A nimbostratus cloud is similar to a stratus cloud in its formless, smooth appearance. However, a nimbostratus cloud is darker than a stratus cloud, because it is thicker.

Unlike a stratus cloud, a nimbostratus cloud typically brings with it the threat of moderate to heavy precipitation. In some cases, the precipitation may evaporate before reaching the ground, a phenomenon known as virga.

Next Topic: Precipitation