Heat Across the Center of the Nation; Severe Thunderstorms Across the Great Lakes and Ohio Valley

Heat expands across the Desert Southwest, Plains, Mississippi Valley and Midwest into Monday. Fire weather concerns continue for portions of the Intermountain West. Active monsoonal moisture fuels thunderstorms over the Southwest with possible flash flooding. Tropical cyclone Fausto in the Pacific, should weaken as it approaches Hawaii; Dangerous surf, swells and rip currents are expected. Read More >

Hazardous Weather Conditions

Current conditions at

Knoxville, McGhee Tyson Airport (KTYS)

Lat: 35.82°NLon: 83.99°WElev: 981ft.

Overcast

74°F

23°C

Humidity 91%
Wind Speed Calm
Barometer 29.93 in (1012.2 mb)
Dewpoint 71°F (22°C)
Visibility 10.00 mi
Last update 27 Jul 7:53 am EDT
Extended Forecast for

3 Miles NW Tallassee TN

  • Today

    Today: Mostly cloudy, then gradually becoming sunny, with a high near 89. Heat index values as high as 98. Calm wind becoming northwest around 5 mph.

    High: 89 °F

    Decreasing
    Clouds

  • Tonight

    Tonight: Mostly clear, with a low around 72. Calm wind.

    Low: 72 °F

    Mostly Clear

  • Tuesday

    Tuesday: Showers and thunderstorms likely, mainly between 4pm and 5pm.  Increasing clouds and hot, with a high near 91. Heat index values as high as 102. West wind 5 to 10 mph, with gusts as high as 20 mph.  Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    High: 91 °F

    Slight Chance
    Showers then
    T-storms
    Likely

  • Tuesday Night

    Tuesday Night: Showers and thunderstorms likely before 11pm, then showers likely between 11pm and 2am.  Mostly cloudy, with a low around 71. West wind around 5 mph becoming calm  in the evening.  Chance of precipitation is 70%.

    Low: 71 °F

    Showers
    Likely

  • Wednesday

    Wednesday: Mostly sunny, with a high near 85. Calm wind becoming north around 5 mph in the afternoon.

    High: 85 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 65. North wind around 5 mph becoming calm  in the evening.

    Low: 65 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 84. Calm wind becoming north around 5 mph in the morning.

    High: 84 °F

    Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 65.

    Low: 65 °F

    Mostly Clear

  • Friday

    Friday: Mostly sunny, with a high near 86.

    High: 86 °F

    Mostly Sunny

Detailed Forecast

Today
Mostly cloudy, then gradually becoming sunny, with a high near 89. Heat index values as high as 98. Calm wind becoming northwest around 5 mph.
Tonight
Mostly clear, with a low around 72. Calm wind.
Tuesday
Showers and thunderstorms likely, mainly between 4pm and 5pm. Increasing clouds and hot, with a high near 91. Heat index values as high as 102. West wind 5 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Tuesday Night
Showers and thunderstorms likely before 11pm, then showers likely between 11pm and 2am. Mostly cloudy, with a low around 71. West wind around 5 mph becoming calm in the evening. Chance of precipitation is 70%.
Wednesday
Mostly sunny, with a high near 85. Calm wind becoming north around 5 mph in the afternoon.
Wednesday Night
Mostly clear, with a low around 65. North wind around 5 mph becoming calm in the evening.
Thursday
Sunny, with a high near 84. Calm wind becoming north around 5 mph in the morning.
Thursday Night
Mostly clear, with a low around 65.
Friday
Mostly sunny, with a high near 86.
Friday Night
Mostly cloudy, with a low around 68.
Saturday
A 40 percent chance of showers and thunderstorms. Partly sunny, with a high near 85.
Saturday Night
A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 69.
Sunday
Showers and thunderstorms likely. Partly sunny, with a high near 83. Chance of precipitation is 70%.
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ABOUT THIS FORECAST

 
Point Forecast:
3 Miles NW Tallassee TN
 35.58°N 83.98°W (Elev. 951 ft)
7:06 am EDT Jul 27, 2026
8am EDT Jul 27, 2026-6pm EDT Aug 2, 2026
 
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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