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

Sumner County Regional Airport (KXNX)

Lat: 36.38°NLon: 86.41°WElev: 583ft.

Fair

86°F

30°C

Humidity 79%
Wind Speed Calm
Barometer 30.24 in
Dewpoint 79°F (26°C)
Visibility 10.00 mi
Heat Index99°F (37°C)
Last update 22 Jun 9:35 am CDT
Extended Forecast for

Hartsville TN

  • Today

    Today: Sunny, with a high near 93. Heat index values as high as 106. Calm wind.

    High: 93 °F

    Sunny

  • Tonight

    Tonight: Patchy fog after 2am. Otherwise, mostly clear, with a low around 72. Calm wind.

    Low: 72 °F

    Mostly Clear
    then Patchy
    Fog

  • Monday

    Monday: Patchy fog before 8am. Otherwise, sunny, with a high near 94. Heat index values as high as 107. Calm wind.

    High: 94 °F

    Patchy Fog
    then Sunny

  • Monday Night

    Monday Night: Patchy fog after 1am. Otherwise, mostly clear, with a low around 73. Calm wind.

    Low: 73 °F

    Mostly Clear
    then Patchy
    Fog

  • Tuesday

    Tuesday: Patchy fog before 8am. Otherwise, sunny, with a high near 95. Calm wind.

    High: 95 °F

    Patchy Fog
    then Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 73. Calm wind.

    Low: 73 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 96. Calm wind.

    High: 96 °F

    Sunny

  • Wednesday Night

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

    Low: 72 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 95. Calm wind.

    High: 95 °F

    Sunny

Detailed Forecast

Today
Sunny, with a high near 93. Heat index values as high as 106. Calm wind.
Tonight
Patchy fog after 2am. Otherwise, mostly clear, with a low around 72. Calm wind.
Monday
Patchy fog before 8am. Otherwise, sunny, with a high near 94. Heat index values as high as 107. Calm wind.
Monday Night
Patchy fog after 1am. Otherwise, mostly clear, with a low around 73. Calm wind.
Tuesday
Patchy fog before 8am. Otherwise, sunny, with a high near 95. Calm wind.
Tuesday Night
Mostly clear, with a low around 73. Calm wind.
Wednesday
Sunny, with a high near 96. Calm wind.
Wednesday Night
Mostly clear, with a low around 72. Calm wind.
Thursday
Sunny, with a high near 95. Calm wind.
Thursday Night
Mostly clear, with a low around 73.
Friday
A 20 percent chance of showers and thunderstorms. Sunny, with a high near 95.
Friday Night
Partly cloudy, with a low around 73.
Saturday
A 30 percent chance of showers and thunderstorms. Mostly sunny, with a high near 93.
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ABOUT THIS FORECAST

 
Point Forecast:
Hartsville TN
 36.38°N 86.16°W (Elev. 440 ft)
Last Update:
5:58 am CDT Jun 22, 2025
Forecast Valid:
9am CDT Jun 22, 2025-6pm CDT Jun 28, 2025
 
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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