Areas of Dangerous Heat and Severe Thunderstorms

Dangerous heat will persist across the Southwest U.S. through Friday with daytime highs of 110-115°F. Heat across the southern Plains will briefly ease to near-normal by late week before returning over much of the Plains into next week. Scattered strong to severe thunderstorms are possible across parts of the Northeast U.S. on Thursday. Damaging wind, hail, and a tornado or two are possible. Read More >

Hazardous Weather Conditions

Current conditions at

Knoxville, McGhee Tyson Airport (KTYS)

Lat: 35.82°NLon: 83.99°WElev: 981ft.

Mostly Cloudy

74°F

23°C

Humidity 82%
Wind Speed E 3 mph
Barometer 29.99 in (1014.3 mb)
Dewpoint 68°F (20°C)
Visibility 10.00 mi
Last update 27 Aug 12:53 am EDT
Extended Forecast for

6 Miles E Knoxville TN

  • Overnight

    Overnight: Partly cloudy, with a low around 69. Calm wind.

    Low: 69 °F

    Partly Cloudy

  • Thursday

    Thursday: A 30 percent chance of showers and thunderstorms, mainly after 4pm.  Mostly sunny and hot, with a high near 91. Heat index values as high as 97. Calm wind becoming southwest around 5 mph in the afternoon.

    High: 91 °F

    Mostly Sunny
    then Chance
    T-storms

  • Thursday Night

    Thursday Night: A chance of showers and thunderstorms.  Patchy fog after 5am.  Otherwise, mostly cloudy, with a low around 68. Calm wind.  Chance of precipitation is 50%. New precipitation amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    Low: 68 °F

    Chance
    T-storms then
    Chance
    Showers and
    Patchy Fog

  • Friday

    Friday: A 10 percent chance of showers before 7am.  Patchy fog before 9am.  Otherwise, mostly sunny and hot, with a high near 90. Calm wind becoming north around 5 mph in the afternoon.

    High: 90 °F

    Slight Chance
    Showers and
    Patchy Fog
    then Mostly
    Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 67. Northeast wind around 5 mph becoming calm.

    Low: 67 °F

    Partly Cloudy

  • Saturday

    Saturday: Sunny and hot, with a high near 91. Calm wind.

    High: 91 °F

    Hot

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 68. Calm wind.

    Low: 68 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny and hot, with a high near 92.

    High: 92 °F

    Hot

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 70.

    Low: 70 °F

    Mostly Clear

Detailed Forecast

Overnight
Partly cloudy, with a low around 69. Calm wind.
Thursday
A 30 percent chance of showers and thunderstorms, mainly after 4pm. Mostly sunny and hot, with a high near 91. Heat index values as high as 97. Calm wind becoming southwest around 5 mph in the afternoon.
Thursday Night
A chance of showers and thunderstorms. Patchy fog after 5am. Otherwise, mostly cloudy, with a low around 68. Calm wind. Chance of precipitation is 50%. New precipitation amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Friday
A 10 percent chance of showers before 7am. Patchy fog before 9am. Otherwise, mostly sunny and hot, with a high near 90. Calm wind becoming north around 5 mph in the afternoon.
Friday Night
Partly cloudy, with a low around 67. Northeast wind around 5 mph becoming calm.
Saturday
Sunny and hot, with a high near 91. Calm wind.
Saturday Night
Mostly clear, with a low around 68. Calm wind.
Sunday
Sunny and hot, with a high near 92.
Sunday Night
Mostly clear, with a low around 70.
Monday
Sunny and hot, with a high near 93.
Monday Night
Mostly clear, with a low around 71.
Tuesday
Sunny and hot, with a high near 94.
Tuesday Night
Partly cloudy, with a low around 72.
Wednesday
A 20 percent chance of showers and thunderstorms. Mostly sunny and hot, with a high near 95.
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ABOUT THIS FORECAST

 
Point Forecast:
6 Miles E Knoxville TN
 35.95°N 83.83°W (Elev. 892 ft)
1:06 am EDT Aug 27, 2026
1am EDT Aug 27, 2026-6pm EDT Sep 2, 2026
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database