Forecast Details for Sisters, OR

Recent Locations: McCleary, WA Mentcle, PA Sisters, OR

Washington's Birthday: Snow likely, mainly before 4pm. Partly sunny, with a high near 40. West wind around 9 mph, with gusts as high as 21 mph. Chance of precipitation is 70%. Total daytime snow accumulation of less than a half inch possible.

Tonight: A chance of snow before 7pm, then a chance of snow after 1am. Partly cloudy, with a low around 18. Light and variable wind. Chance of precipitation is 40%.

Tuesday: Snow likely, mainly after 1pm. Partly sunny, with a high near 36. Calm wind becoming southwest around 5 mph in the morning. Chance of precipitation is 60%. New snow accumulation of less than a half inch possible.

Tuesday Night: A 50 percent chance of snow. Mostly cloudy, with a low around 17. Calm wind. New snow accumulation of less than a half inch possible.

Wednesday: Snow likely, mainly after 10am. Partly sunny, with a high near 33. Calm wind becoming west around 6 mph in the afternoon. Chance of precipitation is 70%. New snow accumulation of less than a half inch possible.

Wednesday Night: Snow likely. Mostly cloudy, with a low around 18. Chance of precipitation is 70%. New snow accumulation of less than a half inch possible.

Thursday: Snow. High near 32. Chance of precipitation is 80%. New snow accumulation of less than a half inch possible.

Thursday Night: Snow likely, mainly before 10pm. Mostly cloudy, with a low around 17. Chance of precipitation is 60%.

Friday: Snow likely. Partly sunny, with a high near 35. Chance of precipitation is 60%.

Friday Night: A chance of snow. Mostly cloudy, with a low around 19.

Saturday: A chance of snow. Partly sunny, with a high near 41.

Saturday Night: A chance of snow. Mostly cloudy, with a low around 24.

Sunday: Rain and snow. Mostly cloudy, with a high near 45.

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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)

This map shows recent moisture content over North America. Bright and colored areas show high moisture (ie, clouds); brown indicates very little moisture present; black indicates no moisture.

Weather Topic: What are Cumulonimbus Clouds?

Home - Education - Cloud Types - Cumulonimbus Clouds

Cumulonimbus Clouds Next Topic: Cumulus Clouds

The final form taken by a growing cumulus cloud is the cumulonimbus cloud, which is very tall and dense. The tower of a cumulonimbus cloud can soar 23 km into the atmosphere, although most commonly they stop growing at an altitude of 6 km.

Even small cumulonimbus clouds appear very large in comparison to other cloud types. They can signal the approach of stormy weather, such as thunderstorms or blizzards.

Next Topic: Cumulus Clouds

Weather Topic: What is Drizzle?

Home - Education - Precipitation - Drizzle

Drizzle Next Topic: Evaporation

Drizzle is precipitation in the form of water droplets which are smaller than raindrops.

Drizzle is characterized by fine, gently falling droplets and typically does not impact human habitation in a negative way. The exception to this is freezing drizzle, a condition where drizzle freezes immediately upon reaching earth's surface. Freezing drizzle is still less dangerous than freezing rain, but can potentially result in hazardous road conditions.

Next Topic: Evaporation