Forecast Details for Chewelah, WA

Recent Locations: Slingerlands, NY Weston, ID Chewelah, WA

Tonight: Mostly cloudy, with a low around 28. Calm wind.

Tuesday: A 30 percent chance of rain, mainly after 4pm. Snow level rising to 2500 feet in the afternoon. Partly sunny, with a high near 43. Calm wind. New precipitation amounts of less than a tenth of an inch possible.

Tuesday Night: A chance of rain and snow, mainly before 1am. Snow level 2300 feet. Mostly cloudy, with a low around 28. Calm wind. Chance of precipitation is 50%. Little or no snow accumulation expected.

Wednesday: A slight chance of rain and snow between 10am and 1pm, then a slight chance of rain after 1pm. Snow level rising to 2500 feet in the afternoon. Mostly cloudy, with a high near 43. Light southwest wind increasing to 5 to 10 mph in the morning. Chance of precipitation is 20%.

Wednesday Night: Mostly cloudy, with a low around 31. South wind around 9 mph.

Thursday: A 20 percent chance of rain after 10am. Snow level 1800 feet rising to 2900 feet in the afternoon. Mostly cloudy, with a high near 45.

Thursday Night: A slight chance of rain before 10pm, then a slight chance of rain and snow after 4am. Snow level 3000 feet lowering to 2300 feet after midnight . Mostly cloudy, with a low around 31. Chance of precipitation is 20%.

Friday: A chance of rain and snow, mainly after 10am. Snow level 1900 feet rising to 2600 feet in the afternoon. Partly sunny, with a high near 46. Chance of precipitation is 30%.

Friday Night: Partly cloudy, with a low around 24.

Saturday: Mostly sunny, with a high near 43.

Saturday Night: Partly cloudy, with a low around 22.

Sunday: Mostly sunny, with a high near 44.

Sunday Night: Partly cloudy, with a low around 24.

Monday: Partly sunny, 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)

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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

Weather Topic: What are Cumulus Clouds?

Home - Education - Cloud Types - Cumulus Clouds

Next Topic: Drizzle

Cumulus clouds are fluffy and textured with rounded tops, and may have flat bottoms. The border of a cumulus cloud is clearly defined, and can have the appearance of cotton or cauliflower.

Cumulus clouds form at low altitudes (rarely above 2 km) but can grow very tall, becoming cumulus congestus and possibly the even taller cumulonimbus clouds. When cumulus clouds become taller, they have a greater chance of producing precipitation.

Next Topic: Drizzle