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

Tullahoma Regional Airport/William Northern Field (KTHA)

Lat: 35.38°NLon: 86.25°WElev: 1083ft.

Fair

72°F

22°C

Humidity 83%
Wind Speed Calm
Barometer 29.96 in
Dewpoint 66°F (19°C)
Visibility 10.00 mi
Last update 20 Jun 8:35 pm CDT
Extended Forecast for

4 Miles SW Summitville TN

  • Tonight

    Tonight: Mostly clear, with a low around 65. Calm wind.

    Low: 65 °F

    Mostly Clear

  • Sunday

    Sunday: Patchy fog before 7am. Otherwise, mostly sunny, with a high near 87. Light south wind becoming south southwest 5 to 10 mph in the morning.

    High: 87 °F

    Patchy Fog
    then Mostly
    Sunny

  • Sunday Night

    Sunday Night: A 50 percent chance of showers and thunderstorms, mainly after 3am. Increasing clouds, with a low around 71. South southwest wind around 10 mph, with gusts as high as 25 mph. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Low: 71 °F

    Mostly Clear
    then Chance
    T-storms

  • Monday

    Monday: A chance of showers and thunderstorms, then showers and possibly a thunderstorm after 7am. High near 83. Southwest wind 10 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 100%.

    High: 83 °F

    Showers
    Likely then
    T-storms

  • Monday Night

    Monday Night: Showers and thunderstorms likely. Mostly cloudy, with a low around 67. West wind around 5 mph becoming calm in the evening. Chance of precipitation is 70%.

    Low: 67 °F

    T-storms
    Likely then
    Showers
    Likely

  • Tuesday

    Tuesday: A slight chance of showers, then a chance of showers and thunderstorms after 10am. Partly sunny, with a high near 82. Calm wind becoming northwest around 5 mph in the morning. Chance of precipitation is 30%.

    High: 82 °F

    Chance
    T-storms

  • Tuesday Night

    Tuesday Night: A 20 percent chance of showers and thunderstorms before 1am. Partly cloudy, with a low around 64. North wind around 5 mph becoming calm.

    Low: 64 °F

    Slight Chance
    T-storms

  • Wednesday

    Wednesday: A 30 percent chance of showers and thunderstorms, mainly after 1pm. Mostly sunny, with a high near 83. Calm wind becoming north northwest around 5 mph.

    High: 83 °F

    Chance
    T-storms

  • Wednesday Night

    Wednesday Night: A 20 percent chance of showers and thunderstorms before 1am. Partly cloudy, with a low around 65. Calm wind.

    Low: 65 °F

    Slight Chance
    T-storms

Detailed Forecast

Tonight
Mostly clear, with a low around 65. Calm wind.
Sunday
Patchy fog before 7am. Otherwise, mostly sunny, with a high near 87. Light south wind becoming south southwest 5 to 10 mph in the morning.
Sunday Night
A 50 percent chance of showers and thunderstorms, mainly after 3am. Increasing clouds, with a low around 71. South southwest wind around 10 mph, with gusts as high as 25 mph. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Monday
A chance of showers and thunderstorms, then showers and possibly a thunderstorm after 7am. High near 83. Southwest wind 10 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 100%.
Monday Night
Showers and thunderstorms likely. Mostly cloudy, with a low around 67. West wind around 5 mph becoming calm in the evening. Chance of precipitation is 70%.
Tuesday
A slight chance of showers, then a chance of showers and thunderstorms after 10am. Partly sunny, with a high near 82. Calm wind becoming northwest around 5 mph in the morning. Chance of precipitation is 30%.
Tuesday Night
A 20 percent chance of showers and thunderstorms before 1am. Partly cloudy, with a low around 64. North wind around 5 mph becoming calm.
Wednesday
A 30 percent chance of showers and thunderstorms, mainly after 1pm. Mostly sunny, with a high near 83. Calm wind becoming north northwest around 5 mph.
Wednesday Night
A 20 percent chance of showers and thunderstorms before 1am. Partly cloudy, with a low around 65. Calm wind.
Thursday
A 20 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 83.
Thursday Night
A 20 percent chance of showers and thunderstorms. Partly cloudy, with a low around 65.
Friday
A 30 percent chance of showers and thunderstorms. Mostly sunny, with a high near 84.
Friday Night
A 30 percent chance of showers and thunderstorms. Partly cloudy, with a low around 66.
Saturday
A 40 percent chance of showers and thunderstorms. Mostly sunny, with a high near 84.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
4 Miles SW Summitville TN
 35.5°N 86.01°W (Elev. 1099 ft)
Last Update:
7:16 pm CDT Jun 20, 2026
Forecast Valid:
8pm CDT Jun 20, 2026-6pm CDT Jun 27, 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