Severe Thunderstorms and Heavy Rainfall from the Lower Mississippi Valley to the Mid-Atlantic; Active Pattern Continues in Hawaii

Scattered severe thunderstorms are expected today from the ArkLaTex and Lower Mississippi Valley through the Ohio Valley and Mid-Atlantic. Thunderstorms may produce heavy to excessive rain that could pose a flooding threat today from east Texas into New York. A powerful kona storm will continue to impact Hawaii through Saturday, bringing heavy rainfall, strong winds, and severe thunderstorms. Read More >

Hazardous Weather Conditions

Current conditions at

Knoxville, McGhee Tyson Airport (KTYS)

Lat: 35.82°NLon: 83.99°WElev: 981ft.

Mostly Cloudy

76°F

24°C

Humidity 56%
Wind Speed SW 20 G 26 mph
Barometer 29.90 in (1011.4 mb)
Dewpoint 59°F (15°C)
Visibility 10.00 mi
Heat Index78°F (26°C)
Last update 11 Mar 4:53 pm EDT
Extended Forecast for

5 Miles SSE Karns TN

  • Tonight

    Tonight: Showers and thunderstorms likely before 10pm, then showers and possibly a thunderstorm between 10pm and 2am, then showers after 2am.  Low around 39. Southwest wind around 15 mph becoming north after midnight. Winds could gust as high as 25 mph.  Chance of precipitation is 100%. New rainfall amounts between 1 and 2 inches possible.

    Low: 39 °F

    Showers

  • Thursday

    Thursday: Showers likely, mainly before 8am.  Cloudy through mid morning, then gradual clearing, with a high near 53. North wind 10 to 15 mph, with gusts as high as 25 mph.  Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch possible.

    High: 53 °F

    Showers
    Likely then
    Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 34. North wind around 5 mph becoming calm.

    Low: 34 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 63. Southwest wind 5 to 15 mph, with gusts as high as 25 mph.

    High: 63 °F

    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 40. Southwest wind 5 to 10 mph.

    Low: 40 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 69. Calm wind becoming northeast around 5 mph in the afternoon.

    High: 69 °F

    Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 47. Calm wind.

    Low: 47 °F

    Mostly Clear

  • Sunday

    Sunday: Partly sunny, with a high near 75. Breezy.

    High: 75 °F

    Mostly Sunny
    then Mostly
    Cloudy and
    Breezy

  • Sunday Night

    Sunday Night: A chance of showers and thunderstorms, then showers and possibly a thunderstorm after 2am.  Low around 40. Chance of precipitation is 80%.

    Low: 40 °F

    Chance
    Showers then
    Showers

Detailed Forecast

Tonight
Showers and thunderstorms likely before 10pm, then showers and possibly a thunderstorm between 10pm and 2am, then showers after 2am. Low around 39. Southwest wind around 15 mph becoming north after midnight. Winds could gust as high as 25 mph. Chance of precipitation is 100%. New rainfall amounts between 1 and 2 inches possible.
Thursday
Showers likely, mainly before 8am. Cloudy through mid morning, then gradual clearing, with a high near 53. North wind 10 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch possible.
Thursday Night
Mostly clear, with a low around 34. North wind around 5 mph becoming calm.
Friday
Sunny, with a high near 63. Southwest wind 5 to 15 mph, with gusts as high as 25 mph.
Friday Night
Mostly clear, with a low around 40. Southwest wind 5 to 10 mph.
Saturday
Sunny, with a high near 69. Calm wind becoming northeast around 5 mph in the afternoon.
Saturday Night
Mostly clear, with a low around 47. Calm wind.
Sunday
Partly sunny, with a high near 75. Breezy.
Sunday Night
A chance of showers and thunderstorms, then showers and possibly a thunderstorm after 2am. Low around 40. Chance of precipitation is 80%.
Monday
Showers, mainly before 8am. High near 50. Chance of precipitation is 80%.
Monday Night
A 10 percent chance of showers. Partly cloudy, with a low around 25.
Tuesday
Mostly sunny, with a high near 44.
Tuesday Night
Partly cloudy, with a low around 29.
Wednesday
Mostly sunny, with a high near 52.
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ABOUT THIS FORECAST

 
Point Forecast:
5 Miles SSE Karns TN
 35.9°N 84.09°W (Elev. 1027 ft)
2:26 pm EDT Mar 11, 2026
5pm EDT Mar 11, 2026-6pm EDT Mar 18, 2026
 
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Additional Resources

Radar & Satellite Image

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Hourly Weather Forecast

National Digital Forecast Database