Areas of Severe Thunderstorms and Heat

Scattered severe thunderstorms and excessive rainfall are possible today in the Mid Atlantic, posing a risk for damaging winds and isolated flash flooding. Extreme Heat Warnings are in effect today for northeast Texas into southern Oklahoma and Arkansas. Extreme Heat Warnings are also in effect for the Desert Southwest today into Sunday. Read More >

Hazardous Weather Conditions

Current conditions at

Knoxville, McGhee Tyson Airport (KTYS)

Lat: 35.82°NLon: 83.99°WElev: 981ft.

Overcast

77°F

25°C

Humidity 79%
Wind Speed SE 10 mph
Barometer 30.07 in (1017.0 mb)
Dewpoint 70°F (21°C)
Visibility 10.00 mi
Heat Index79°F (26°C)
Last update 20 Aug 10:53 am EDT
Extended Forecast for

2 Miles SSE Townsend TN

  • Today

    Today: Partly sunny and hot, with a high near 91. Heat index values as high as 98. West wind around 5 mph.

    High: 91 °F

    Hot

  • Tonight

    Tonight: A 40 percent chance of showers and thunderstorms, mainly after 8pm.  Mostly cloudy, with a low around 68. South wind around 5 mph becoming calm.

    Low: 68 °F

    Chance
    T-storms

  • Friday

    Friday: A chance of showers and thunderstorms before 4pm, then showers likely and possibly a thunderstorm between 4pm and 5pm, then a chance of showers and thunderstorms after 5pm.  Partly sunny, with a high near 88. Calm wind becoming west around 5 mph in the afternoon.  Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 88 °F

    Slight Chance
    T-storms then
    Showers
    Likely

  • Friday Night

    Friday Night: Showers and thunderstorms likely before 8pm, then a chance of showers between 8pm and 2am.  Partly cloudy, with a low around 66. Calm wind.  Chance of precipitation is 60%.

    Low: 66 °F

    Showers
    Likely then
    Chance
    Showers

  • Saturday

    Saturday: Sunny, with a high near 88. Calm wind becoming northwest around 5 mph in the afternoon.

    High: 88 °F

    Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 64. Calm wind.

    Low: 64 °F

    Partly Cloudy

  • Sunday

    Sunday: Sunny, with a high near 85. Calm wind becoming northwest around 5 mph in the afternoon.

    High: 85 °F

    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 61.

    Low: 61 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 86.

    High: 86 °F

    Sunny

Detailed Forecast

Today
Partly sunny and hot, with a high near 91. Heat index values as high as 98. West wind around 5 mph.
Tonight
A 40 percent chance of showers and thunderstorms, mainly after 8pm. Mostly cloudy, with a low around 68. South wind around 5 mph becoming calm.
Friday
A chance of showers and thunderstorms before 4pm, then showers likely and possibly a thunderstorm between 4pm and 5pm, then a chance of showers and thunderstorms after 5pm. Partly sunny, with a high near 88. Calm wind becoming west around 5 mph in the afternoon. Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Friday Night
Showers and thunderstorms likely before 8pm, then a chance of showers between 8pm and 2am. Partly cloudy, with a low around 66. Calm wind. Chance of precipitation is 60%.
Saturday
Sunny, with a high near 88. Calm wind becoming northwest around 5 mph in the afternoon.
Saturday Night
Partly cloudy, with a low around 64. Calm wind.
Sunday
Sunny, with a high near 85. Calm wind becoming northwest around 5 mph in the afternoon.
Sunday Night
Mostly clear, with a low around 61.
Monday
Sunny, with a high near 86.
Monday Night
Partly cloudy, with a low around 63.
Tuesday
Sunny, with a high near 88.
Tuesday Night
A 20 percent chance of showers. Partly cloudy, with a low around 65.
Wednesday
A 30 percent chance of showers and thunderstorms. Mostly sunny and hot, with a high near 90.
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ABOUT THIS FORECAST

 
Point Forecast:
2 Miles SSE Townsend TN
 35.65°N 83.75°W (Elev. 1483 ft)
8:16 am EDT Aug 20, 2026
11am EDT Aug 20, 2026-6pm EDT Aug 26, 2026
 
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Additional Resources

Radar & Satellite Image

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Hourly Weather Forecast

National Digital Forecast Database