Forecast Details for Swan Valley, ID

Recent Locations: Mercer, TN Decker, IN Swan Valley, ID

This Afternoon: Showers likely and possibly a thunderstorm before 3pm, then a chance of showers and thunderstorms after 3pm. Snow level 7700 feet. Partly sunny, with a high near 54. West southwest wind 7 to 11 mph, with gusts as high as 20 mph. Chance of precipitation is 60%.

Tonight: Rain before 5am, then rain, possibly mixed with snow. Some thunder is also possible. Snow level 7900 feet lowering to 6600 feet after midnight . Low around 35. Southwest wind 9 to 11 mph becoming southeast in the evening. Winds could gust as high as 20 mph. Chance of precipitation is 90%. Little or no snow accumulation expected.

Thursday: Rain and snow, becoming all snow after 9am. Some thunder is also possible. Steady temperature around 37. Breezy, with a west southwest wind 13 to 18 mph increasing to 19 to 24 mph in the afternoon. Winds could gust as high as 34 mph. Chance of precipitation is 100%. New snow accumulation of around an inch possible.

Thursday Night: Snow. Low around 27. West wind 15 to 20 mph decreasing to 9 to 14 mph after midnight. Winds could gust as high as 28 mph. Chance of precipitation is 90%. New snow accumulation of 1 to 2 inches possible.

Friday: A 50 percent chance of snow, mainly before noon. Mostly cloudy, with a high near 44. West wind 8 to 11 mph, with gusts as high as 20 mph. New snow accumulation of less than a half inch possible.

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

Saturday: Sunny, with a high near 53.

Saturday Night: Clear, with a low around 29.

Sunday: Sunny, with a high near 60.

Sunday Night: Mostly clear, with a low around 32.

Monday: Mostly sunny, with a high near 64.

Monday Night: Partly cloudy, with a low around 36.

Tuesday: Mostly sunny, with a high near 65.

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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 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