On July 7, 2015, NWS implemented changes to the icons depicted on all of its point-forecast pages. Changes include new icon images with increased clarity, 6-hour increments for rapidly changing weather and new color blocks to highlight forecast hazards.

A page depicting all of the new icon images can be accessed here: www.weather.gov/forecast-icons

Changes to the icons were based on analysis of 6,700 public comments collected in 2014. Also, many of these changes are based on the results of a research project led by the National Center for Atmospheric Research.

Users are encouraged to continue to provide comments regarding these changes via email at icons@noaa.gov. NWS will continue to analyze incoming feedback and refine the icons as necessary. Any substantial change to the icons will be facilitated through the NWS public comment/review process.

Heavy rain could bring flash flooding to parts of southern Plains

Showers and thunderstorms associated with a slow-moving frontal system will bring heavy rainfall to parts of the southern Plains and mid-Mississippi Valley, which could result in flash flooding. The heaviest rainfall is expected across parts of northern Texas and southern Oklahoma. Some locations could see rainfall rates of up to 2 inches per hour.
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Current conditions at

Knoxville, McGhee Tyson Airport (KTYS)

Lat: 35.82°NLon: 83.99°WElev: 981ft.

A Few Clouds

28°C

83°F

Humidity 67%
Wind Speed SW 20 km/h
Barometer 30.14 in (1019.4 mb)
Dewpoint 22°C (71°F)
Visibility 16 km
Heat Index31°C (88°F)
Last update 7 Jul 12:53 pm EDT
Extended Forecast for

Knoxville TN

    • This
      Afternoon

      This Afternoon: A 20 percent chance of showers and thunderstorms.  Partly sunny, with a high near 31. Southwest wind 15 to 20 km/h.

      Slight Chance
      T-storms

      High: 31 °C

    • Tonight

      Tonight: A 20 percent chance of showers and thunderstorms before 11pm.  Patchy fog after 5am.  Otherwise, partly cloudy, with a low around 21. Southwest wind 5 to 10 km/h.

      Slight Chance
      T-storms then
      Patchy Fog

      Low: 21 °C

    • Wednesday

      Wednesday: A 30 percent chance of showers and thunderstorms, mainly after 2pm.  Patchy fog before 8am.  Otherwise, mostly sunny, with a high near 31. South wind 5 to 15 km/h.

      Chance
      T-storms and
      Patchy Fog

      High: 31 °C

    • Wednesday
      Night

      Wednesday Night: A 30 percent chance of showers and thunderstorms, mainly before 8pm.  Partly cloudy, with a low around 21. South wind 5 to 10 km/h.

      Chance
      T-storms then
      Partly Cloudy

      Low: 21 °C

    • Thursday

      Thursday: Mostly sunny, with a high near 31. South wind 5 to 10 km/h becoming west in the afternoon.

      Mostly Sunny

      High: 31 °C

    • Thursday
      Night

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

      Partly Cloudy

      Low: 22 °C

    • Friday

      Friday: A 20 percent chance of showers and thunderstorms.  Mostly sunny, with a high near 31.

      Slight Chance
      T-storms

      High: 31 °C

    • Friday
      Night

      Friday Night: A 20 percent chance of showers and thunderstorms.  Partly cloudy, with a low around 22.

      Slight Chance
      T-storms

      Low: 22 °C

    • Saturday

      Saturday: A 20 percent chance of showers and thunderstorms.  Mostly sunny and hot, with a high near 32.

      Slight Chance
      T-storms

      High: 32 °C

Detailed Forecast

This Afternoon
A 20 percent chance of showers and thunderstorms. Partly sunny, with a high near 31. Southwest wind 15 to 20 km/h.
Tonight
A 20 percent chance of showers and thunderstorms before 11pm. Patchy fog after 5am. Otherwise, partly cloudy, with a low around 21. Southwest wind 5 to 10 km/h.
Wednesday
A 30 percent chance of showers and thunderstorms, mainly after 2pm. Patchy fog before 8am. Otherwise, mostly sunny, with a high near 31. South wind 5 to 15 km/h.
Wednesday Night
A 30 percent chance of showers and thunderstorms, mainly before 8pm. Partly cloudy, with a low around 21. South wind 5 to 10 km/h.
Thursday
Mostly sunny, with a high near 31. South wind 5 to 10 km/h becoming west in the afternoon.
Thursday Night
Partly cloudy, with a low around 22.
Friday
A 20 percent chance of showers and thunderstorms. Mostly sunny, with a high near 31.
Friday Night
A 20 percent chance of showers and thunderstorms. Partly cloudy, with a low around 22.
Saturday
A 20 percent chance of showers and thunderstorms. Mostly sunny and hot, with a high near 32.
Saturday Night
Partly cloudy, with a low around 22.
Sunday
A 20 percent chance of showers and thunderstorms. Mostly sunny and hot, with a high near 32.
Sunday Night
A 20 percent chance of showers and thunderstorms. Partly cloudy, with a low around 22.
Monday
A 30 percent chance of showers and thunderstorms. Mostly sunny and hot, with a high near 32.
  Click Map For Forecast
Point Forecast:
Knoxville TN
 35.98°N 83.94°W (Elev. 287 m)
3:27 am EDT Jul 7, 2015
1pm EDT Jul 7, 2015-6pm EDT Jul 13, 2015
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Graph

National Digital Forecast Database