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.

Overcast and Breezy

77°F

25°C

Humidity 54%
Wind Speed SW 21 mph
Barometer 29.89 in (1011.2 mb)
Dewpoint 59°F (15°C)
Visibility 10.00 mi
Heat Index79°F (26°C)
Last update 11 Mar 5:53 pm EDT
Extended Forecast for

Knoxville, McGhee Tyson Airport 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 30 mph.  Chance of precipitation is 100%. New rainfall amounts between 1 and 2 inches possible.

    Low: 39 °F

    Showers

  • Thursday

    Thursday: A 30 percent chance of showers before 9am.  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.

    High: 53 °F

    Chance
    Showers then
    Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 33. North wind around 5 mph becoming calm.

    Low: 33 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 64. Breezy, with a southwest wind 5 to 10 mph increasing to 15 to 20 mph in the afternoon. Winds could gust as high as 25 mph.

    High: 64 °F

    Sunny then
    Sunny and
    Breezy

  • 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 70. Calm wind becoming northeast around 5 mph in the afternoon.

    High: 70 °F

    Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 47. Calm wind becoming southeast around 5 mph.

    Low: 47 °F

    Mostly Clear

  • Sunday

    Sunday: Partly sunny, with a high near 76. Breezy.

    High: 76 °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 30 mph. Chance of precipitation is 100%. New rainfall amounts between 1 and 2 inches possible.
Thursday
A 30 percent chance of showers before 9am. 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.
Thursday Night
Mostly clear, with a low around 33. North wind around 5 mph becoming calm.
Friday
Sunny, with a high near 64. Breezy, with a southwest wind 5 to 10 mph increasing to 15 to 20 mph in the afternoon. Winds could gust 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 70. Calm wind becoming northeast around 5 mph in the afternoon.
Saturday Night
Mostly clear, with a low around 47. Calm wind becoming southeast around 5 mph.
Sunday
Partly sunny, with a high near 76. 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 51. Breezy. 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 45.
Tuesday Night
Mostly cloudy, with a low around 29.
Wednesday
Mostly sunny, with a high near 54.
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ABOUT THIS FORECAST

 
Point Forecast:
Knoxville, McGhee Tyson Airport TN
 35.81°N 84.01°W (Elev. 899 ft)
2:26 pm EDT Mar 11, 2026
6pm EDT Mar 11, 2026-6pm EDT Mar 18, 2026
 
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Additional Resources

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