Forecast Details for Ketchum, ID

Recent Locations: Walls, MS Dublin, PA Ketchum, ID

Washington's Birthday: A chance of rain and snow, mainly after 4pm. Snow level rising to 6300 feet. Mostly cloudy, with a high near 44. South southeast wind around 11 mph, with gusts as high as 18 mph. Chance of precipitation is 30%. Total daytime snow accumulation of less than a half inch possible.

Tonight: Snow, possibly mixed with rain, becoming all snow after midnight. The snow could be heavy at times. Low around 18. Southeast wind 11 to 15 mph becoming west southwest after midnight. Winds could gust as high as 26 mph. Chance of precipitation is 100%. New snow accumulation of 3 to 5 inches possible.

Tuesday: Snow likely, mainly after 3pm. Partly sunny, with a high near 33. South wind 10 to 14 mph, with gusts as high as 25 mph. Chance of precipitation is 60%. New snow accumulation of around an inch possible.

Tuesday Night: Snow. Low around 16. South southeast wind 5 to 9 mph. Chance of precipitation is 80%. New snow accumulation of 1 to 3 inches possible.

Wednesday: Snow likely. Mostly cloudy, with a high near 31. Light and variable wind becoming west southwest 5 to 9 mph in the morning. Chance of precipitation is 70%. New snow accumulation of 1 to 2 inches possible.

Wednesday Night: A 40 percent chance of snow. Mostly cloudy, with a low around 5. New snow accumulation of less than a half inch possible.

Thursday: A 40 percent chance of snow, mainly after 11am. Partly sunny, with a high near 27. New snow accumulation of less than a half inch possible.

Thursday Night: Snow likely, mainly before 11pm. Mostly cloudy, with a low around 5. Chance of precipitation is 60%.

Friday: A 40 percent chance of snow. Partly sunny, with a high near 29.

Friday Night: A 20 percent chance of snow. Partly cloudy, with a low around 4.

Saturday: A 20 percent chance of snow. Partly sunny, with a high near 32.

Saturday Night: A 20 percent chance of snow. Mostly cloudy, with a low around 13.

Sunday: A 30 percent chance of snow. Partly sunny, with a high near 40.

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North America Water Vapor (Moisture)

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Weather Topic: What are Cirrus Clouds?

Home - Education - Cloud Types - Cirrus Clouds

Next Topic: Condensation

Cirrus clouds are high-level clouds that occur above 20,000 feet and are composed mainly of ice crystals. They are thin and wispy in appearance.

What do they indicate?
They are often the first sign of an approaching storm.

Next Topic: Condensation

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