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.

Fair

68°F

20°C

Humidity 100%
Wind Speed Calm
Barometer 30.10 in
Dewpoint 68°F (20°C)
Visibility 10.00 mi
Last update 14 Jul 6:15 am CDT
Extended Forecast for

Lancaster TN

  • Today

    Today: A 50 percent chance of showers and thunderstorms, mainly after 1pm. Mostly sunny, with a high near 90. Calm wind becoming southwest around 5 mph. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    High: 90 °F

    Slight Chance
    T-storms then
    Chance
    T-storms

  • Tonight

    Tonight: A 20 percent chance of showers and thunderstorms before 8pm. Patchy fog after midnight. Otherwise, partly cloudy, with a low around 70. Calm wind.

    Low: 70 °F

    Slight Chance
    T-storms then
    Patchy Fog

  • Tuesday

    Tuesday: A 20 percent chance of showers before 8am. Patchy fog before 8am. Otherwise, mostly sunny, with a high near 92. Heat index values as high as 97. Calm wind.

    High: 92 °F

    Slight Chance
    Showers and
    Patchy Fog
    then Mostly
    Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 72. Calm wind.

    Low: 72 °F

    Partly Cloudy

  • Wednesday

    Wednesday: A slight chance of showers, then a chance of showers and thunderstorms after 10am. Mostly sunny, with a high near 92. Calm wind becoming southwest around 5 mph. Chance of precipitation is 50%.

    High: 92 °F

    Slight Chance
    T-storms then
    Chance
    T-storms

  • Wednesday Night

    Wednesday Night: A 20 percent chance of showers and thunderstorms before 1am. Partly cloudy, with a low around 72. Calm wind becoming south around 5 mph.

    Low: 72 °F

    Slight Chance
    T-storms

  • Thursday

    Thursday: A 50 percent chance of showers and thunderstorms. Mostly sunny, with a high near 92. South southwest wind around 5 mph.

    High: 92 °F

    Chance
    Showers then
    Chance
    T-storms

  • Thursday Night

    Thursday Night: A 20 percent chance of showers and thunderstorms before 1am. Partly cloudy, with a low around 73. South southwest wind around 5 mph becoming calm.

    Low: 73 °F

    Slight Chance
    T-storms

  • Friday

    Friday: A slight chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1pm. Mostly sunny, with a high near 91. Southwest wind around 5 mph. Chance of precipitation is 60%.

    High: 91 °F

    Slight Chance
    T-storms then
    Showers
    Likely

Detailed Forecast

Today
A 50 percent chance of showers and thunderstorms, mainly after 1pm. Mostly sunny, with a high near 90. Calm wind becoming southwest around 5 mph. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Tonight
A 20 percent chance of showers and thunderstorms before 8pm. Patchy fog after midnight. Otherwise, partly cloudy, with a low around 70. Calm wind.
Tuesday
A 20 percent chance of showers before 8am. Patchy fog before 8am. Otherwise, mostly sunny, with a high near 92. Heat index values as high as 97. Calm wind.
Tuesday Night
Partly cloudy, 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. Calm wind becoming southwest around 5 mph. Chance of precipitation is 50%.
Wednesday Night
A 20 percent chance of showers and thunderstorms before 1am. Partly cloudy, with a low around 72. Calm wind becoming south around 5 mph.
Thursday
A 50 percent chance of showers and thunderstorms. Mostly sunny, with a high near 92. South southwest wind around 5 mph.
Thursday Night
A 20 percent chance of showers and thunderstorms before 1am. Partly cloudy, with a low around 73. South southwest wind around 5 mph becoming calm.
Friday
A slight chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1pm. Mostly sunny, with a high near 91. Southwest wind around 5 mph. Chance of precipitation is 60%.
Friday Night
A 20 percent chance of showers and thunderstorms before 1am. Partly cloudy, with a low around 72.
Saturday
A 50 percent chance of showers and thunderstorms. Partly sunny, with a high near 91.
Saturday Night
A 20 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 71.
Sunday
A 40 percent chance of showers and thunderstorms. Mostly sunny, with a high near 91.
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ABOUT THIS FORECAST

 
Point Forecast:
Lancaster TN
 36.08°N 85.88°W (Elev. 1004 ft)
Last Update:
5:28 am CDT Jul 14, 2025
Forecast Valid:
6am CDT Jul 14, 2025-6pm CDT Jul 20, 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