Notice of NWS' New Version of Forecast
A new version of Forecast is coming soon!
Click here to visit the new site for details.

Excessive Heat in parts of the Central and Southern U.S.

Heat Advisories and Excessive Heat Warnings extend from the Southern Plains into the Mid-Atlantic and Southeast today. High temperatures for these areas will mostly be in the upper 90s. A few locations may exceed 100. Hot temperatures combined with high dew points will create heat index values of 100 to 115 degrees. Read More >

Hazardous Weather Conditions

Current conditions at

Knoxville, McGhee Tyson Airport (KTYS)

Lat: 35.82°NLon: 83.99°WElev: 981ft.

Overcast

84°F

29°C

Humidity 65%
Wind Speed W 8 mph
Barometer 29.93 in (1012.2 mb)
Dewpoint 71°F (22°C)
Visibility 10.00 mi
Heat Index89°F (32°C)
Last update 23 Jul 12:53 pm EDT
Extended Forecast for

Knoxville, McGhee Tyson Airport TN

  • This
    Afternoon

    This Afternoon: A 40 percent chance of showers and thunderstorms.  Partly sunny and hot, with a high near 93. Heat index values as high as 98. Southwest wind 10 to 15 mph, with gusts as high as 20 mph.

    Chance
    T-storms

    High: 93 °F

  • Tonight

    Tonight: Showers and thunderstorms likely, mainly before 2am.  Mostly cloudy, with a low around 73. Southwest wind 5 to 10 mph.  Chance of precipitation is 60%. New rainfall amounts between a quarter and half of an inch possible.

    T-storms
    Likely

    Low: 73 °F

  • Monday

    Monday: A 40 percent chance of showers and thunderstorms, mainly after 8am.  Partly sunny, with a high near 88. Southwest wind around 5 mph.

    Chance
    T-storms

    High: 88 °F

  • Monday
    Night

    Monday Night: A 30 percent chance of showers and thunderstorms.  Mostly cloudy, with a low around 72. Southwest wind around 5 mph becoming calm  in the evening.

    Chance
    T-storms

    Low: 72 °F

  • Tuesday

    Tuesday: A 30 percent chance of showers and thunderstorms.  Partly sunny and hot, with a high near 90. Calm wind becoming northwest around 5 mph in the afternoon.

    Chance
    T-storms

    High: 90 °F

  • Tuesday
    Night

    Tuesday Night: Partly cloudy, with a low around 71.

    Partly Cloudy

    Low: 71 °F

  • Wednesday

    Wednesday: A 20 percent chance of showers and thunderstorms.  Mostly sunny and hot, with a high near 90.

    Slight Chance
    T-storms

    High: 90 °F

  • Wednesday
    Night

    Wednesday Night: Partly cloudy, with a low around 72.

    Partly Cloudy

    Low: 72 °F

  • Thursday

    Thursday: A 30 percent chance of showers and thunderstorms.  Mostly sunny and hot, with a high near 90.

    Chance
    T-storms

    High: 90 °F

Detailed Forecast

This Afternoon
A 40 percent chance of showers and thunderstorms. Partly sunny and hot, with a high near 93. Heat index values as high as 98. Southwest wind 10 to 15 mph, with gusts as high as 20 mph.
Tonight
Showers and thunderstorms likely, mainly before 2am. Mostly cloudy, with a low around 73. Southwest wind 5 to 10 mph. Chance of precipitation is 60%. New rainfall amounts between a quarter and half of an inch possible.
Monday
A 40 percent chance of showers and thunderstorms, mainly after 8am. Partly sunny, with a high near 88. Southwest wind around 5 mph.
Monday Night
A 30 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 72. Southwest wind around 5 mph becoming calm in the evening.
Tuesday
A 30 percent chance of showers and thunderstorms. Partly sunny and hot, with a high near 90. Calm wind becoming northwest around 5 mph in the afternoon.
Tuesday Night
Partly cloudy, with a low around 71.
Wednesday
A 20 percent chance of showers and thunderstorms. Mostly sunny and hot, with a high near 90.
Wednesday Night
Partly cloudy, with a low around 72.
Thursday
A 30 percent chance of showers and thunderstorms. Mostly sunny and hot, with a high near 90.
Thursday Night
A 40 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 72.
Friday
Showers and thunderstorms likely. Mostly cloudy, with a high near 86. Chance of precipitation is 60%.
Friday Night
A 40 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 70.
Saturday
A 20 percent chance of showers and thunderstorms. Partly sunny, with a high near 85.
Click Map For Forecast
Point Forecast:
Knoxville, McGhee Tyson Airport TN
 35.83°N 83.98°W (Elev. 961 ft)
11:17 am EDT Jul 23, 2017
1pm EDT Jul 23, 2017-6pm EDT Jul 29, 2017
 
Get as KML Get as XML

Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database