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

Hazardous Weather Conditions

Current conditions at

Knoxville, McGhee Tyson Airport (KTYS)

Lat: 35.82°NLon: 83.99°WElev: 981ft.

Mostly Cloudy

31°C

87°F

Humidity 55%
Wind Speed N 9 km/h
Barometer 1012.9 mb (29.95 in)
Dewpoint 21°C (69°F)
Visibility 16 km
Heat Index33°C (91°F)
Last update 10 Jul 6:53 pm EDT
Extended Forecast for

2 Miles SW Maryville TN

  • Tonight

    Tonight: Showers and thunderstorms likely, mainly before 8pm. Patchy fog after 4am. Otherwise, partly cloudy, with a low around 21. Calm wind. Chance of precipitation is 60%. New precipitation amounts of less than 1 mm, except higher amounts possible in thunderstorms.

    Low: 21 °C

    T-storms
    Likely then
    Patchy Fog

  • Friday

    Friday: A 40 percent chance of showers and thunderstorms, mainly after 2pm. Patchy fog before 8am. Otherwise, mostly sunny and hot, with a high near 32. Heat index values as high as 36. Calm wind.

    High: 32 °C

    Chance
    T-storms and
    Patchy Fog

  • Friday Night

    Friday Night: A 30 percent chance of showers and thunderstorms before 8pm. Partly cloudy, with a low around 21. Calm wind.

    Low: 21 °C

    Chance
    T-storms then
    Partly Cloudy

  • Saturday

    Saturday: A 50 percent chance of showers and thunderstorms, mainly after 2pm. Mostly sunny and hot, with a high near 32. Heat index values as high as 36. West wind 5 to 10 km/h.

    High: 32 °C

    Slight Chance
    T-storms then
    Chance
    T-storms

  • Saturday Night

    Saturday Night: A 30 percent chance of showers and thunderstorms, mainly before 8pm. Partly cloudy, with a low around 22. South wind 5 to 10 km/h.

    Low: 22 °C

    Chance
    T-storms

  • Sunday

    Sunday: A slight chance of showers, then a chance of showers and thunderstorms after 11am. Mostly sunny and hot, with a high near 33. South wind 5 to 10 km/h becoming west in the morning. Chance of precipitation is 50%.

    High: 33 °C

    Slight Chance
    T-storms then
    Chance
    T-storms

  • Sunday Night

    Sunday Night: A 30 percent chance of showers and thunderstorms before 2am. Partly cloudy, with a low around 22. Southwest wind 5 to 10 km/h becoming south in the evening.

    Low: 22 °C

    Chance
    T-storms

  • Monday

    Monday: A 50 percent chance of showers and thunderstorms, mainly after 2pm. Partly sunny and hot, with a high near 32.

    High: 32 °C

    Slight Chance
    T-storms then
    Chance
    T-storms

  • Monday Night

    Monday Night: A 30 percent chance of showers and thunderstorms, mainly before 8pm. Partly cloudy, with a low around 21.

    Low: 21 °C

    Chance
    T-storms

Detailed Forecast

Tonight
Showers and thunderstorms likely, mainly before 8pm. Patchy fog after 4am. Otherwise, partly cloudy, with a low around 21. Calm wind. Chance of precipitation is 60%. New precipitation amounts of less than 1 mm, except higher amounts possible in thunderstorms.
Friday
A 40 percent chance of showers and thunderstorms, mainly after 2pm. Patchy fog before 8am. Otherwise, mostly sunny and hot, with a high near 32. Heat index values as high as 36. Calm wind.
Friday Night
A 30 percent chance of showers and thunderstorms before 8pm. Partly cloudy, with a low around 21. Calm wind.
Saturday
A 50 percent chance of showers and thunderstorms, mainly after 2pm. Mostly sunny and hot, with a high near 32. Heat index values as high as 36. West wind 5 to 10 km/h.
Saturday Night
A 30 percent chance of showers and thunderstorms, mainly before 8pm. Partly cloudy, with a low around 22. South wind 5 to 10 km/h.
Sunday
A slight chance of showers, then a chance of showers and thunderstorms after 11am. Mostly sunny and hot, with a high near 33. South wind 5 to 10 km/h becoming west in the morning. Chance of precipitation is 50%.
Sunday Night
A 30 percent chance of showers and thunderstorms before 2am. Partly cloudy, with a low around 22. Southwest wind 5 to 10 km/h becoming south in the evening.
Monday
A 50 percent chance of showers and thunderstorms, mainly after 2pm. Partly sunny and hot, with a high near 32.
Monday Night
A 30 percent chance of showers and thunderstorms, mainly before 8pm. Partly cloudy, with a low around 21.
Tuesday
A 30 percent chance of showers and thunderstorms after 2pm. Sunny and hot, with a high near 33.
Tuesday Night
A 30 percent chance of showers and thunderstorms. Partly cloudy, with a low around 22.
Wednesday
A 40 percent chance of showers and thunderstorms. Mostly sunny and hot, with a high near 33.
Wednesday Night
A 30 percent chance of showers and thunderstorms. Partly cloudy, with a low around 22.
Thursday
Showers and thunderstorms likely. Mostly sunny and hot, with a high near 32. Chance of precipitation is 60%.
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ABOUT THIS FORECAST

 
Point Forecast:
2 Miles SW Maryville TN
 35.72°N 83.99°W (Elev. 1004 m)
Last Update:
1:30 pm EDT Jul 10, 2025
Forecast Valid:
6pm EDT Jul 10, 2025-6pm EDT Jul 17, 2025
 
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