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

Hazardous Weather Conditions

Current conditions at

Sparta Upper Cumberland Regional Airport (KSRB)

Lat: 36.06°NLon: 85.53°WElev: 1024ft.

Fair

70°F

21°C

Humidity 100%
Wind Speed Calm
Barometer 30.05 in
Dewpoint 70°F (21°C)
Visibility 10.00 mi
Last update 29 Jun 3:15 am CDT
Extended Forecast for

Lancaster TN

Extreme Heat Warning June 29, 11:00am until July 2, 08:00pm
Click here for hazard details and duration
Extreme Heat Warning

  • Overnight

    Overnight: Mostly clear, with a low around 74. Calm wind.

    Low: 74 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 96. Heat index values as high as 111. Calm wind.

    High: 96 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 75. Calm wind.

    Low: 75 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny and hot, with a high near 98. Heat index values as high as 113. Calm wind.

    High: 98 °F

    Hot

  • Tuesday Night

    Tuesday Night: Clear, with a low around 76. Calm wind.

    Low: 76 °F

    Clear

  • Wednesday

    Wednesday: A 20 percent chance of showers and thunderstorms after 1pm. Sunny and hot, with a high near 99. Calm wind.

    High: 99 °F

    Sunny then
    Slight Chance
    T-storms

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 77. Calm wind.

    Low: 77 °F

    Mostly Clear

  • Thursday

    Thursday: A 20 percent chance of showers and thunderstorms after 1pm. Sunny and hot, with a high near 99. Calm wind.

    High: 99 °F

    Sunny then
    Slight Chance
    T-storms

  • Thursday Night

    Thursday Night: A 40 percent chance of showers and thunderstorms before 1am. Mostly clear, with a low around 75. Calm wind.

    Low: 75 °F

    Chance
    T-storms

Detailed Forecast

Overnight
Mostly clear, with a low around 74. Calm wind.
Monday
Sunny, with a high near 96. Heat index values as high as 111. Calm wind.
Monday Night
Mostly clear, with a low around 75. Calm wind.
Tuesday
Sunny and hot, with a high near 98. Heat index values as high as 113. Calm wind.
Tuesday Night
Clear, with a low around 76. Calm wind.
Wednesday
A 20 percent chance of showers and thunderstorms after 1pm. Sunny and hot, with a high near 99. Calm wind.
Wednesday Night
Mostly clear, with a low around 77. Calm wind.
Thursday
A 20 percent chance of showers and thunderstorms after 1pm. Sunny and hot, with a high near 99. Calm wind.
Thursday Night
A 40 percent chance of showers and thunderstorms before 1am. Mostly clear, with a low around 75. Calm wind.
Friday
A 30 percent chance of showers and thunderstorms after 1pm. Sunny and hot, with a high near 97.
Friday Night
A 20 percent chance of showers and thunderstorms. Partly cloudy, with a low around 75.
Independence Day
A 40 percent chance of showers and thunderstorms. Mostly sunny, with a high near 95.
Saturday Night
A 30 percent chance of showers and thunderstorms. Partly cloudy, with a low around 74.
Sunday
A 50 percent chance of showers and thunderstorms. Mostly sunny, with a high near 94.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Lancaster TN
 36.1°N 85.82°W (Elev. 620 ft)
Last Update:
1:31 am CDT Jun 29, 2026
Forecast Valid:
3am CDT Jun 29, 2026-6pm CDT Jul 5, 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