National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Risks of Severe Thunderstorms and Excessive Rainfall; Fire Weather Concerns and Record Warmth

Severe thunderstorms and flash flooding risks increase across the center of the nation today. Meanwhile, ongoing thunderstorms and flash flooding will linger along the Gulf Coast states through the evening. The Great Basin and Intermountain West, warm temperatures and dry fuels with dry lightning may enhance fire weather potential. In addition, across interior Alaska, Red Flag Warning are posted. Read More >

Current conditions at

Knoxville, McGhee Tyson Airport (KTYS)

Lat: 35.82°NLon: 83.99°WElev: 981ft.

Mostly Cloudy

70°F

21°C

Humidity 73%
Wind Speed Calm
Barometer 30.06 in (1016.8 mb)
Dewpoint 61°F (16°C)
Visibility 10.00 mi
Last update 20 Jun 8:53 am EDT
Extended Forecast for

3 Miles SE Tallassee TN

  • Today

    Today: Mostly cloudy, then gradually becoming sunny, with a high near 74. Calm wind becoming northwest around 5 mph.

    High: 74 °F

    Decreasing
    Clouds

  • Tonight

    Tonight: Mostly clear, with a low around 62. Northwest wind around 5 mph becoming southeast after midnight.

    Low: 62 °F

    Mostly Clear

  • Sunday

    Sunday: A 10 percent chance of showers and thunderstorms after 4pm. Sunny, with a high near 78. South wind around 5 mph becoming southwest in the afternoon.

    High: 78 °F

    Sunny then
    Slight Chance
    T-storms

  • Sunday Night

    Sunday Night: A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 2am. Partly cloudy, with a low around 68. South wind 10 to 15 mph, with gusts as high as 20 mph. Chance of precipitation is 70%.

    Low: 68 °F

    Chance
    T-storms then
    Showers
    Likely

  • Monday

    Monday: Showers and possibly a thunderstorm. High near 73. Southwest wind 10 to 15 mph, with gusts as high as 30 mph. Chance of precipitation is 100%.

    High: 73 °F

    Showers then
    T-storms

  • Monday Night

    Monday Night: Showers and possibly a thunderstorm before 2am, then showers likely. Low around 66. Southwest wind 5 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 90%.

    Low: 66 °F

    T-storms then
    Showers

  • Tuesday

    Tuesday: Showers likely before 8am, then showers likely and possibly a thunderstorm between 8am and 2pm, then a chance of showers and thunderstorms after 2pm. Partly sunny, with a high near 72. Northwest wind around 5 mph. Chance of precipitation is 60%.

    High: 72 °F

    Showers
    Likely

  • Tuesday Night

    Tuesday Night: A 30 percent chance of showers before 8pm. Mostly cloudy, with a low around 62.

    Low: 62 °F

    Chance
    Showers then
    Mostly Cloudy

  • Wednesday

    Wednesday: A 40 percent chance of showers and thunderstorms, mainly after 2pm. Mostly sunny, with a high near 74.

    High: 74 °F

    Chance
    T-storms

Detailed Forecast

Today
Mostly cloudy, then gradually becoming sunny, with a high near 74. Calm wind becoming northwest around 5 mph.
Tonight
Mostly clear, with a low around 62. Northwest wind around 5 mph becoming southeast after midnight.
Sunday
A 10 percent chance of showers and thunderstorms after 4pm. Sunny, with a high near 78. South wind around 5 mph becoming southwest in the afternoon.
Sunday Night
A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 2am. Partly cloudy, with a low around 68. South wind 10 to 15 mph, with gusts as high as 20 mph. Chance of precipitation is 70%.
Monday
Showers and possibly a thunderstorm. High near 73. Southwest wind 10 to 15 mph, with gusts as high as 30 mph. Chance of precipitation is 100%.
Monday Night
Showers and possibly a thunderstorm before 2am, then showers likely. Low around 66. Southwest wind 5 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 90%.
Tuesday
Showers likely before 8am, then showers likely and possibly a thunderstorm between 8am and 2pm, then a chance of showers and thunderstorms after 2pm. Partly sunny, with a high near 72. Northwest wind around 5 mph. Chance of precipitation is 60%.
Tuesday Night
A 30 percent chance of showers before 8pm. Mostly cloudy, with a low around 62.
Wednesday
A 40 percent chance of showers and thunderstorms, mainly after 2pm. Mostly sunny, with a high near 74.
Wednesday Night
A 30 percent chance of showers and thunderstorms, mainly before 8pm. Partly cloudy, with a low around 63.
Thursday
A 30 percent chance of showers and thunderstorms. Mostly sunny, with a high near 74.
Thursday Night
A 30 percent chance of showers and thunderstorms. Partly cloudy, with a low around 63.
Friday
A 40 percent chance of showers and thunderstorms. Mostly sunny, with a high near 74.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
3 Miles SE Tallassee TN
 35.53°N 83.9°W (Elev. 3100 ft)
Last Update:
7:06 am EDT Jun 20, 2026
Forecast Valid:
9am EDT Jun 20, 2026-6pm EDT Jun 26, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation