Forecast Details for Knoxville, TN

Recent Locations: Knoxville, TN  
Today: Sunny, with a high near 83. Southwest wind 5 to 10 mph.
Tonight: Increasing clouds, with a low around 63. South wind around 5 mph.
Tuesday: A chance of showers and thunderstorms, then showers and possibly a thunderstorm after 8am. High near 76. Southwest wind 5 to 10 mph. Chance of precipitation is 90%. New rainfall amounts between a quarter and half of an inch possible.
Tuesday Night: Showers and possibly a thunderstorm before 9pm, then a slight chance of showers and thunderstorms between 9pm and midnight. Low around 58. West wind around 5 mph. Chance of precipitation is 80%.
Wednesday: Mostly sunny, with a high near 82. Northeast wind around 5 mph.
Wednesday Night: Clear, with a low around 57. Northeast wind around 5 mph.
Thursday: Sunny, with a high near 87. East wind around 5 mph becoming southwest in the afternoon.
Thursday Night: Mostly clear, with a low around 61.
Friday: A slight chance of showers between 9am and 3pm, then a chance of showers and thunderstorms after 3pm. Mostly sunny, with a high near 82. Chance of precipitation is 40%.
Friday Night: A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 63.
Saturday: Showers and thunderstorms likely. Mostly cloudy, with a high near 80. Chance of precipitation is 60%.
Saturday Night: Showers and thunderstorms likely. Partly cloudy, with a low around 60. Chance of precipitation is 60%.
Sunday: A 40 percent chance of showers and thunderstorms. Mostly sunny, with a high near 81.

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Current U.S. National Radar--Current

The Current National Weather Radar is shown below with a UTC Time (subtract 5 hours from UTC to get Eastern Time).

Current U.S. National Radar

National Weather Forecast--Current

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Today's National Weather Map

National Weather Forecast for Tomorrow

Tomorrow National Weather Forecast and Tomorrow National Weather Map are show below.

Tomorrows National Weather Map

North America Water Vapor (Moisture)

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North American Water Vapor Map

Weather Topic: What are Cirrocumulus Clouds?

Home - Education - Cloud Types - Cirrocumulus Clouds

Cirrocumulus Clouds Next Topic: Cirrostratus Clouds

Cirrocumulus clouds form at high altitudes (usually around 5 km) and have distinguishing characteristics displayed in a fine layer of small cloud patches. These small cloud patches are sometimes referred to as "cloudlets" in relation to the whole cloud formation.

Cirrocumulus clouds are formed from ice crystals and water droplets. Often, the water droplets in the cloud freeze into ice crystals and the cloud becomes a cirrostratus cloud. Because of this common occurrence, cirrocumulus cloud formations generally pass rapidly.

Next Topic: Cirrostratus Clouds

Weather Topic: What are Cirrus Clouds?

Home - Education - Cloud Types - Cirrus Clouds

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