Extreme Fire Weather Concerns for the Western U.S.; Severe Weather and Flooding Threats for the Central U.S.

Extremely critical fire weather conditions are expected to develop across the Great Basin and Southwest today, and exceptionally dry and windy conditions will promote rapid wildfire spread through the weekend. Scattered severe thunderstorms and heavy rain are possible across parts of the Ozark Plateau into lower Ohio Valley and parts of the northern Rockies into adjacent Great Plains. Read More >

Hazardous Weather Conditions

Current conditions at

Knoxville, McGhee Tyson Airport (KTYS)

Lat: 35.82°NLon: 83.99°WElev: 981ft.

Mostly Cloudy

88°F

31°C

Humidity 45%
Wind Speed SW 14 G 18 mph
Barometer 30.06 in (1016.5 mb)
Dewpoint 64°F (18°C)
Visibility 10.00 mi
Heat Index89°F (32°C)
Last update 26 Jun 4:53 pm EDT
Extended Forecast for

4 Miles ESE Karns TN

  • Tonight

    Tonight: A slight chance of showers and thunderstorms between 8pm and 2am.  Mostly cloudy, with a low around 72. West wind around 5 mph becoming south after midnight.  Chance of precipitation is 20%.

    Low: 72 °F

    Slight Chance
    T-storms

  • Saturday

    Saturday: Showers and thunderstorms likely before 2pm, then showers and possibly a thunderstorm between 2pm and 4pm, then showers and thunderstorms likely after 4pm.  High near 86. Southwest wind around 10 mph, with gusts as high as 20 mph.  Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    High: 86 °F

    Chance
    T-storms then
    T-storms

  • Saturday Night

    Saturday Night: Showers and thunderstorms, mainly before 4am, then showers and possibly a thunderstorm after 5am.  Low around 71. Southwest wind around 5 mph.  Chance of precipitation is 90%. New rainfall amounts between a quarter and half of an inch possible.

    Low: 71 °F

    T-storms
    Likely then
    Showers

  • Sunday

    Sunday: Showers likely and possibly a thunderstorm before 2pm, then a chance of showers and thunderstorms after 2pm.  Cloudy, then gradually becoming mostly sunny, with a high near 89. Heat index values as high as 98. Southwest wind around 5 mph.  Chance of precipitation is 70%.

    High: 89 °F

    Showers
    Likely

  • Sunday Night

    Sunday Night: A 30 percent chance of showers and thunderstorms, mainly before 8pm.  Partly cloudy, with a low around 72. Calm wind.

    Low: 72 °F

    Chance
    Showers then
    Slight Chance
    T-storms

  • Monday

    Monday: A slight chance of showers before 11am, then a slight chance of showers and thunderstorms between 11am and 2pm.  Mostly sunny and hot, with a high near 92. Calm wind.  Chance of precipitation is 20%.

    High: 92 °F

    Slight Chance
    T-storms

  • Monday Night

    Monday Night: Mostly clear, with a low around 73. Calm wind.

    Low: 73 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny and hot, with a high near 93.

    High: 93 °F

    Hot

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 74.

    Low: 74 °F

    Mostly Clear

Detailed Forecast

Tonight
A slight chance of showers and thunderstorms between 8pm and 2am. Mostly cloudy, with a low around 72. West wind around 5 mph becoming south after midnight. Chance of precipitation is 20%.
Saturday
Showers and thunderstorms likely before 2pm, then showers and possibly a thunderstorm between 2pm and 4pm, then showers and thunderstorms likely after 4pm. High near 86. Southwest wind around 10 mph, with gusts as high as 20 mph. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Saturday Night
Showers and thunderstorms, mainly before 4am, then showers and possibly a thunderstorm after 5am. Low around 71. Southwest wind around 5 mph. Chance of precipitation is 90%. New rainfall amounts between a quarter and half of an inch possible.
Sunday
Showers likely and possibly a thunderstorm before 2pm, then a chance of showers and thunderstorms after 2pm. Cloudy, then gradually becoming mostly sunny, with a high near 89. Heat index values as high as 98. Southwest wind around 5 mph. Chance of precipitation is 70%.
Sunday Night
A 30 percent chance of showers and thunderstorms, mainly before 8pm. Partly cloudy, with a low around 72. Calm wind.
Monday
A slight chance of showers before 11am, then a slight chance of showers and thunderstorms between 11am and 2pm. Mostly sunny and hot, with a high near 92. Calm wind. Chance of precipitation is 20%.
Monday Night
Mostly clear, with a low around 73. Calm wind.
Tuesday
Sunny and hot, with a high near 93.
Tuesday Night
Mostly clear, with a low around 74.
Wednesday
A 20 percent chance of showers and thunderstorms after 2pm. Sunny and hot, with a high near 94.
Wednesday Night
A 20 percent chance of showers and thunderstorms. Mostly clear, with a low around 75.
Thursday
Sunny and hot, with a high near 96.
Thursday Night
Mostly clear, with a low around 75.
Friday
A 30 percent chance of showers and thunderstorms. Sunny and hot, with a high near 95.
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ABOUT THIS FORECAST

 
Point Forecast:
4 Miles ESE Karns TN
 35.94°N 84.05°W (Elev. 974 ft)
2:26 pm EDT Jun 26, 2026
5pm EDT Jun 26, 2026-6pm EDT Jul 3, 2026
 
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Additional Resources

Radar & Satellite Image

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Hourly Weather Forecast

National Digital Forecast Database