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

Heat in the Central U.S.; Heavy Rain Possible for South Texas; Monitoring Erin Tropical Impacts

Hot temperatures are forecast over the Plains and into the lower Mississippi River Valley Friday where Heat Advisories have been issued. Heavy rain from a disturbance in the western Gulf could bring flooding to south Texas. Erin could bring tropical storm conditions and heavy rain to Puerto Rico and the USVI this weekend with dangerous surf and rip currents impacting the western Atlantic Basin. Read More >

Hazardous Weather Conditions

Current conditions at

Knoxville Downtown Airport (KDKX)

Lat: 35.97°NLon: 83.87°WElev: 827ft.

Fog

72°F

22°C

Humidity 100%
Wind Speed Calm
Barometer 30.10 in
Dewpoint 72°F (22°C)
Visibility 0.50 mi
Last update 15 Aug 6:15 am EDT
Extended Forecast for

4 Miles WNW New Market TN

  • Today

    Today: A 10 percent chance of showers and thunderstorms after 5pm. Mostly sunny and hot, with a high near 91. Heat index values as high as 97. Calm wind.

    High: 91 °F

    Mostly Sunny
    then Slight
    Chance
    T-storms

  • Tonight

    Tonight: Partly cloudy, with a low around 70. Calm wind.

    Low: 70 °F

    Partly Cloudy

  • Saturday

    Saturday: Mostly sunny and hot, with a high near 93. Heat index values as high as 96. Calm wind.

    High: 93 °F

    Hot

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 70. Calm wind.

    Low: 70 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny and hot, with a high near 94. Calm wind.

    High: 94 °F

    Hot

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 71. Calm wind.

    Low: 71 °F

    Mostly Clear

  • Monday

    Monday: Sunny and hot, with a high near 95. Calm wind.

    High: 95 °F

    Hot

  • Monday Night

    Monday Night: Mostly clear, with a low around 71.

    Low: 71 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny and hot, with a high near 94.

    High: 94 °F

    Hot

Detailed Forecast

Today
A 10 percent chance of showers and thunderstorms after 5pm. Mostly sunny and hot, with a high near 91. Heat index values as high as 97. Calm wind.
Tonight
Partly cloudy, with a low around 70. Calm wind.
Saturday
Mostly sunny and hot, with a high near 93. Heat index values as high as 96. Calm wind.
Saturday Night
Mostly clear, with a low around 70. Calm wind.
Sunday
Sunny and hot, with a high near 94. Calm wind.
Sunday Night
Mostly clear, with a low around 71. Calm wind.
Monday
Sunny and hot, with a high near 95. Calm wind.
Monday Night
Mostly clear, with a low around 71.
Tuesday
Sunny and hot, with a high near 94.
Tuesday Night
A 20 percent chance of showers and thunderstorms before 2am. Partly cloudy, with a low around 71.
Wednesday
A 30 percent chance of showers and thunderstorms. Mostly sunny and hot, with a high near 91.
Wednesday Night
A 30 percent chance of showers and thunderstorms. Partly cloudy, with a low around 70.
Thursday
A 40 percent chance of showers and thunderstorms. Partly sunny, with a high near 88.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
4 Miles WNW New Market TN
 36.12°N 83.62°W (Elev. 1037 ft)
Last Update:
1:43 am EDT Aug 15, 2025
Forecast Valid:
6am EDT Aug 15, 2025-6pm EDT Aug 21, 2025
 
Forecast Discussion
 
Get as KML Get as XML

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