Forecast Details for Sisters, OR

Recent Locations: Sisters, OR

Today: A 50 percent chance of showers. Partly sunny, with a high near 53. West wind 5 to 11 mph, with gusts as high as 18 mph. New precipitation amounts of less than a tenth of an inch possible.

Tonight: A 30 percent chance of showers before 11pm. Mostly cloudy, then gradually becoming mostly clear, with a low around 33. West wind 5 to 11 mph, with gusts as high as 18 mph.

Saturday: Increasing clouds, with a high near 53. West wind 5 to 10 mph.

Saturday Night: Mostly cloudy, with a low around 33. West wind 6 to 11 mph becoming light southwest after midnight.

Sunday: Partly sunny, with a high near 55. Light southwest wind becoming west 6 to 11 mph in the afternoon.

Sunday Night: A slight chance of rain showers before 11pm, then a chance of rain and snow showers. Snow level 5200 feet lowering to 3300 feet after midnight . Partly cloudy, with a low around 30. Chance of precipitation is 30%.

Monday: A chance of rain and snow showers before 2pm, then a chance of rain showers. Snow level rising to 3600 feet in the afternoon. Mostly sunny, with a high near 50. Chance of precipitation is 40%.

Monday Night: A chance of rain showers, mixing with snow after 8pm, then gradually ending. Snow level 3900 feet lowering to 3200 feet after midnight . Partly cloudy, with a low around 28. Chance of precipitation is 30%.

Tuesday: A slight chance of rain and snow showers before 11am. Snow level rising to 4100 feet in the afternoon. Mostly sunny, with a high near 56. Chance of precipitation is 20%.

Tuesday Night: Partly cloudy, with a low around 30.

Wednesday: Mostly sunny, with a high near 65.

Wednesday Night: A chance of showers. Partly cloudy, with a low around 36.

Thursday: A chance of showers. Mostly sunny, with a high near 58.

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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 is Snow?

Home - Education - Precipitation - Snow

Snow Next Topic: Stratocumulus Clouds

Snow is precipitation taking the form of ice crystals. Each ice crystal, or snowflake, has unique characteristics, but all of them grow in a hexagonal structure. Snowfall can last for sustained periods of time and result in significant buildup of snow on the ground.

On the earth's surface, snow starts out light and powdery, but as it begins to melt it tends to become more granular, producing small bits of ice which have the consistency of sand. After several cycles of melting and freezing, snow can become very dense and ice-like, commonly known as snow pack.

Next Topic: Stratocumulus Clouds

Weather Topic: What are Stratus Clouds?

Home - Education - Cloud Types - Stratus Clouds

Next Topic: Wall Clouds

Stratus clouds are similar to altostratus clouds, but form at a lower altitude and are identified by their fog-like appearance, lacking the distinguishing features of most clouds.

Stratus clouds are wider than most clouds, and their base has a smooth, uniform look which is lighter in color than a nimbostratus cloud. The presence of a stratus cloud indicates the possibility of minor precipitation, such as drizzle, but heavier precipitation does not typically arrive in the form of a stratus cloud.

Next Topic: Wall Clouds