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

Sparta Upper Cumberland Regional Airport (KSRB)

Lat: 36.06°NLon: 85.53°WElev: 1024ft.

Fog/Mist

66°F

19°C

Humidity 100%
Wind Speed Calm
Barometer 29.98 in
Dewpoint 66°F (19°C)
Visibility 2.00 mi
Last update 7 Sep 4:35 am CDT
Extended Forecast for

Lancaster TN

  • Labor Day

    Labor Day: A 10 percent chance of showers and thunderstorms after 5pm. Mostly sunny, with a high near 92. Heat index values as high as 98. Calm wind becoming east northeast around 5 mph.

    High: 92 °F

    Mostly Sunny
    then Slight
    Chance
    T-storms

  • Tonight

    Tonight: A 10 percent chance of showers and thunderstorms before 7pm. Mostly cloudy, then gradually becoming clear, with a low around 67. East wind around 5 mph becoming south southeast after midnight.

    Low: 67 °F

    Slight Chance
    T-storms then
    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 92. Heat index values as high as 97. South southeast wind 5 to 10 mph.

    High: 92 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 67. South southeast wind around 5 mph.

    Low: 67 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 93. South wind around 5 mph.

    High: 93 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 70. Calm wind becoming south around 5 mph after midnight.

    Low: 70 °F

    Mostly Clear

  • Thursday

    Thursday: A slight chance of showers, then a chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 93. South wind around 5 mph becoming west in the afternoon. Chance of precipitation is 50%.

    High: 93 °F

    Slight Chance
    Showers then
    Chance
    T-storms

  • Thursday Night

    Thursday Night: Showers likely and possibly a thunderstorm before 1am, then a slight chance of showers. Mostly cloudy, with a low around 67. Calm wind. Chance of precipitation is 60%.

    Low: 67 °F

    Showers
    Likely

  • Friday

    Friday: A slight chance of showers, then a chance of showers and thunderstorms after 1pm. Partly sunny, with a high near 90. Calm wind. Chance of precipitation is 50%.

    High: 90 °F

    Slight Chance
    Showers then
    Chance
    Showers

Detailed Forecast

Labor Day
A 10 percent chance of showers and thunderstorms after 5pm. Mostly sunny, with a high near 92. Heat index values as high as 98. Calm wind becoming east northeast around 5 mph.
Tonight
A 10 percent chance of showers and thunderstorms before 7pm. Mostly cloudy, then gradually becoming clear, with a low around 67. East wind around 5 mph becoming south southeast after midnight.
Tuesday
Sunny, with a high near 92. Heat index values as high as 97. South southeast wind 5 to 10 mph.
Tuesday Night
Mostly clear, with a low around 67. South southeast wind around 5 mph.
Wednesday
Sunny, with a high near 93. South wind around 5 mph.
Wednesday Night
Mostly clear, with a low around 70. Calm wind becoming south around 5 mph after midnight.
Thursday
A slight chance of showers, then a chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 93. South wind around 5 mph becoming west in the afternoon. Chance of precipitation is 50%.
Thursday Night
Showers likely and possibly a thunderstorm before 1am, then a slight chance of showers. Mostly cloudy, with a low around 67. Calm wind. Chance of precipitation is 60%.
Friday
A slight chance of showers, then a chance of showers and thunderstorms after 1pm. Partly sunny, with a high near 90. Calm wind. Chance of precipitation is 50%.
Friday Night
A 20 percent chance of showers after 1am. Partly cloudy, with a low around 65.
Saturday
A 30 percent chance of showers and thunderstorms. Mostly sunny, with a high near 91.
Saturday Night
Partly cloudy, with a low around 67.
Sunday
A 20 percent chance of showers and thunderstorms. Mostly sunny, with a high near 93.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Lancaster TN
 36.1°N 85.82°W (Elev. 620 ft)
Last Update:
1:31 am CDT Sep 7, 2026
Forecast Valid:
4am CDT Sep 7, 2026-6pm CDT Sep 13, 2026
 
Forecast Discussion
 
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Additional Resources

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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