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

73°F

23°C

Humidity 100%
Wind Speed Calm
Barometer 30.05 in
Dewpoint 73°F (23°C)
Visibility 4.00 mi
Last update 15 Jul 9:50 pm CDT
Extended Forecast for

Lancaster TN

  • Tonight

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

    Low: 72 °F

    Mostly Clear

  • Wednesday

    Wednesday: A slight chance of showers, then a chance of showers and thunderstorms after 10am. Mostly sunny, with a high near 92. Heat index values as high as 102. Southwest wind around 5 mph. Chance of precipitation is 40%.

    High: 92 °F

    Chance
    T-storms

  • Wednesday Night

    Wednesday Night: A 20 percent chance of showers and thunderstorms before midnight. Partly cloudy, with a low around 73. Calm wind becoming south southeast around 5 mph.

    Low: 73 °F

    Slight Chance
    T-storms then
    Partly Cloudy

  • Thursday

    Thursday: A 50 percent chance of showers and thunderstorms, mainly after 1pm. Mostly sunny, with a high near 92. Heat index values as high as 100. South southwest wind around 5 mph.

    High: 92 °F

    Slight Chance
    T-storms then
    Chance
    T-storms

  • Thursday Night

    Thursday Night: A 30 percent chance of showers and thunderstorms before 1am. Partly cloudy, with a low around 72. South southwest wind around 5 mph becoming calm.

    Low: 72 °F

    Chance
    T-storms

  • Friday

    Friday: Showers and thunderstorms likely, mainly between 1pm and 4pm, then showers likely and possibly a thunderstorm after 4pm. Mostly sunny, with a high near 90. Southwest wind around 5 mph. Chance of precipitation is 60%.

    High: 90 °F

    Chance
    T-storms then
    T-storms
    Likely

  • Friday Night

    Friday Night: A 30 percent chance of showers and thunderstorms, mainly before 7pm. Mostly cloudy, with a low around 73. Calm wind becoming south around 5 mph.

    Low: 73 °F

    Chance
    T-storms

  • Saturday

    Saturday: A 50 percent chance of showers and thunderstorms, mainly after 1pm. Mostly sunny, with a high near 90. Southwest wind around 5 mph.

    High: 90 °F

    Slight Chance
    T-storms then
    Chance
    T-storms

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 72. South southwest wind around 5 mph.

    Low: 72 °F

    Partly Cloudy

Detailed Forecast

Tonight
Mostly clear, with a low around 72. Calm wind.
Wednesday
A slight chance of showers, then a chance of showers and thunderstorms after 10am. Mostly sunny, with a high near 92. Heat index values as high as 102. Southwest wind around 5 mph. Chance of precipitation is 40%.
Wednesday Night
A 20 percent chance of showers and thunderstorms before midnight. Partly cloudy, with a low around 73. Calm wind becoming south southeast around 5 mph.
Thursday
A 50 percent chance of showers and thunderstorms, mainly after 1pm. Mostly sunny, with a high near 92. Heat index values as high as 100. South southwest wind around 5 mph.
Thursday Night
A 30 percent chance of showers and thunderstorms before 1am. Partly cloudy, with a low around 72. South southwest wind around 5 mph becoming calm.
Friday
Showers and thunderstorms likely, mainly between 1pm and 4pm, then showers likely and possibly a thunderstorm after 4pm. Mostly sunny, with a high near 90. Southwest wind around 5 mph. Chance of precipitation is 60%.
Friday Night
A 30 percent chance of showers and thunderstorms, mainly before 7pm. Mostly cloudy, with a low around 73. Calm wind becoming south around 5 mph.
Saturday
A 50 percent chance of showers and thunderstorms, mainly after 1pm. Mostly sunny, with a high near 90. Southwest wind around 5 mph.
Saturday Night
Partly cloudy, with a low around 72. South southwest wind around 5 mph.
Sunday
A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1pm. Mostly sunny, with a high near 91. Chance of precipitation is 60%.
Sunday Night
A 20 percent chance of showers and thunderstorms. Partly cloudy, with a low around 72.
Monday
A 50 percent chance of showers and thunderstorms. Mostly sunny, with a high near 92.
Monday Night
A 20 percent chance of showers and thunderstorms. Partly cloudy, with a low around 72.
Tuesday
A 40 percent chance of showers and thunderstorms. Sunny, with a high near 93.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Lancaster TN
 36.08°N 85.88°W (Elev. 1004 ft)
Last Update:
7:11 pm CDT Jul 15, 2025
Forecast Valid:
10pm CDT Jul 15, 2025-6pm CDT Jul 22, 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