Forecast Details for Tiller, OR

Recent Locations: Tiller, OR

Overnight: A 30 percent chance of rain after 5am. Mostly cloudy, with a low around 45. Calm wind.

Thursday: Rain, mainly after 8am. High near 51. Calm wind becoming southwest around 6 mph in the afternoon. Chance of precipitation is 100%. New precipitation amounts between a tenth and quarter of an inch possible.

Thursday Night: Rain. Low around 45. West southwest wind around 6 mph. Chance of precipitation is 100%. New precipitation amounts between a quarter and half of an inch possible.

Friday: Rain. Snow level 4700 feet. High near 49. West wind 5 to 8 mph. Chance of precipitation is 100%. New precipitation amounts between a quarter and half of an inch possible.

Friday Night: A 40 percent chance of rain before 11pm. Snow level 4700 feet lowering to 4000 feet after midnight . Mostly cloudy, with a low around 43. West wind 3 to 7 mph.

Saturday: A 30 percent chance of rain after 11am. Snow level 3700 feet rising to 5100 feet in the afternoon. Mostly cloudy, with a high near 56.

Saturday Night: A 30 percent chance of rain before 11pm. Mostly cloudy, with a low around 47.

Sunday: A chance of rain, mainly after 11am. Mostly cloudy, with a high near 58.

Sunday Night: A slight chance of rain before 11pm. Snow level 5600 feet lowering to 3900 feet after midnight . Mostly cloudy, with a low around 43.

Monday: A chance of rain, mainly after 11am. Snow level 3500 feet rising to 4400 feet in the afternoon. Partly sunny, with a high near 56.

Monday Night: Mostly cloudy, with a low around 39.

Tuesday: A slight chance of rain. Snow level 3500 feet rising to 5000 feet in the afternoon. Partly sunny, with a high near 60.

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

Wednesday: A chance of rain. Snow level 4400 feet rising to 5200 feet in the afternoon. Mostly sunny, with a high near 60.

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Current U.S. National Radar--Current

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North America Water Vapor (Moisture)

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Weather Topic: What is Precipitation?

Home - Education - Precipitation - Precipitation

Next Topic: Rain

Precipitation can refer to many different forms of water that may fall from clouds. Precipitation occurs after a cloud has become saturated to the point where its water particles are more dense than the air below the cloud.

In most cases, precipitation will reach the ground, but it is not uncommon for precipitation to evaporate before it reaches the earth's surface. When precipitation evaporates before it contacts the ground it is called Virga. Graupel, hail, sleet, rain, drizzle, and snow are forms of precipitation, but fog and mist are not considered precipitation because the water vapor which constitutes them isn't dense enough to fall to the ground.

Next Topic: Rain

Weather Topic: What are Shelf Clouds?

Home - Education - Cloud Types - Shelf Clouds

Shelf Clouds Next Topic: Sleet

A shelf cloud is similar to a wall cloud, but forms at the front of a storm cloud, instead of at the rear, where wall clouds form.

A shelf cloud is caused by a series of events set into motion by the advancing storm; first, cool air settles along the ground where precipitation has just fallen. As the cool air is brought in, the warmer air is displaced, and rises above it, because it is less dense. When the warmer air reaches the bottom of the storm cloud, it begins to cool again, and the resulting condensation is a visible shelf cloud.

Next Topic: Sleet