Extreme Heat and Tropical Storm Bertha Impacts

Dangerous heat will expand from the Gulf Coast into the Southern Plains and Desert Southwest through week's end. Additional extreme heat impacting the Pacific Northwest will shift to the northern Plains by the weekend. Tropical Storm Bertha is expected to continue to impact portions of the northern Gulf Coast from the western Florida Panhandle to southeastern Louisiana through tonight. Read More >

Hazardous Weather Conditions

Current conditions at

Knoxville, McGhee Tyson Airport (KTYS)

Lat: 35.82°NLon: 83.99°WElev: 981ft.

Light Rain

74°F

23°C

Humidity 97%
Wind Speed NW 5 mph
Barometer 29.99 in (1014.5 mb)
Dewpoint 73°F (23°C)
Visibility 7.00 mi
Last update 22 Jul 9:53 pm EDT
Extended Forecast for

3 Miles SW Knoxville TN

  • Tonight

    Tonight: A chance of showers and thunderstorms, then showers likely after 2am.  Mostly cloudy, with a low around 68. Calm wind becoming north around 5 mph after midnight.  Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Low: 68 °F

    Chance
    T-storms then
    Showers
    Likely

  • Thursday

    Thursday: A chance of showers before 11am, then a slight chance of showers and thunderstorms after 2pm.  Mostly cloudy, then gradually becoming sunny, with a high near 84. North wind around 5 mph becoming calm  in the morning.  Chance of precipitation is 30%.

    High: 84 °F

    Chance
    Showers then
    Slight Chance
    T-storms

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 68. Calm wind.

    Low: 68 °F

    Mostly Cloudy

  • Friday

    Friday: A chance of showers, with thunderstorms also possible after 2pm.  Partly sunny, with a high near 85. Calm wind becoming west around 5 mph.  Chance of precipitation is 50%.

    High: 85 °F

    Chance
    Showers then
    Chance
    T-storms

  • Friday Night

    Friday Night: A chance of showers and thunderstorms.  Mostly cloudy, with a low around 71. Calm wind.  Chance of precipitation is 50%.

    Low: 71 °F

    Chance
    T-storms then
    Chance
    Showers

  • Saturday

    Saturday: Showers likely before 11am, then showers likely and possibly a thunderstorm between 11am and 2pm, then showers and thunderstorms likely after 2pm.  Mostly cloudy, with a high near 84. Calm wind becoming southwest around 5 mph in the afternoon.  Chance of precipitation is 70%.

    High: 84 °F

    Showers
    Likely then
    T-storms
    Likely

  • Saturday Night

    Saturday Night: Showers and thunderstorms likely before 2am, then a chance of showers.  Mostly cloudy, with a low around 71. Calm wind.  Chance of precipitation is 60%.

    Low: 71 °F

    T-storms
    Likely then
    Chance
    Showers

  • Sunday

    Sunday: A slight chance of showers, then a chance of showers and thunderstorms after 8am.  Partly sunny, with a high near 88. Chance of precipitation is 30%.

    High: 88 °F

    Chance
    T-storms

  • Sunday Night

    Sunday Night: A chance of showers and thunderstorms before 2am, then a slight chance of showers.  Partly cloudy, with a low around 72. Chance of precipitation is 30%.

    Low: 72 °F

    Chance
    T-storms

Detailed Forecast

Tonight
A chance of showers and thunderstorms, then showers likely after 2am. Mostly cloudy, with a low around 68. Calm wind becoming north around 5 mph after midnight. Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Thursday
A chance of showers before 11am, then a slight chance of showers and thunderstorms after 2pm. Mostly cloudy, then gradually becoming sunny, with a high near 84. North wind around 5 mph becoming calm in the morning. Chance of precipitation is 30%.
Thursday Night
Mostly cloudy, with a low around 68. Calm wind.
Friday
A chance of showers, with thunderstorms also possible after 2pm. Partly sunny, with a high near 85. Calm wind becoming west around 5 mph. Chance of precipitation is 50%.
Friday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 71. Calm wind. Chance of precipitation is 50%.
Saturday
Showers likely before 11am, then showers likely and possibly a thunderstorm between 11am and 2pm, then showers and thunderstorms likely after 2pm. Mostly cloudy, with a high near 84. Calm wind becoming southwest around 5 mph in the afternoon. Chance of precipitation is 70%.
Saturday Night
Showers and thunderstorms likely before 2am, then a chance of showers. Mostly cloudy, with a low around 71. Calm wind. Chance of precipitation is 60%.
Sunday
A slight chance of showers, then a chance of showers and thunderstorms after 8am. Partly sunny, with a high near 88. Chance of precipitation is 30%.
Sunday Night
A chance of showers and thunderstorms before 2am, then a slight chance of showers. Partly cloudy, with a low around 72. Chance of precipitation is 30%.
Monday
A 20 percent chance of showers and thunderstorms after 2pm. Mostly sunny and hot, with a high near 90.
Monday Night
A 30 percent chance of showers and thunderstorms. Partly cloudy, with a low around 73.
Tuesday
A 30 percent chance of showers and thunderstorms. Mostly sunny and hot, with a high near 90.
Tuesday Night
A 30 percent chance of showers and thunderstorms. Partly cloudy, with a low around 72.
Wednesday
A 30 percent chance of showers and thunderstorms. Mostly sunny, with a high near 88.
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ABOUT THIS FORECAST

 
Point Forecast:
3 Miles SW Knoxville TN
 35.94°N 83.97°W (Elev. 902 ft)
8:16 pm EDT Jul 22, 2026
10pm EDT Jul 22, 2026-6pm EDT Jul 29, 2026
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database