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

77°F

25°C

Humidity 69%
Wind Speed S 5 mph
Barometer 30.12 in
Dewpoint 66°F (19°C)
Visibility 10.00 mi
Heat Index79°F (26°C)
Last update 18 May 8:35 pm CDT
Extended Forecast for

8 Miles S Shelbyville TN

  • Tonight

    Tonight: Partly cloudy, with a low around 69. South wind 5 to 10 mph.

    Low: 69 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Partly sunny, with a high near 87. South southwest wind 5 to 10 mph, with gusts as high as 20 mph.

    High: 87 °F

    Partly Sunny

  • Tuesday Night

    Tuesday Night: A slight chance of showers, then a chance of showers and thunderstorms after 3am. Increasing clouds, with a low around 67. South wind around 5 mph becoming calm in the evening. Chance of precipitation is 30%.

    Low: 67 °F

    Chance
    Showers

  • Wednesday

    Wednesday: Showers and possibly a thunderstorm. High near 82. Calm wind becoming southwest around 5 mph in the afternoon. Chance of precipitation is 90%.

    High: 82 °F

    Showers

  • Wednesday Night

    Wednesday Night: Showers likely and possibly a thunderstorm. Patchy fog after 11pm. Otherwise, mostly cloudy, with a low around 64. North wind around 5 mph becoming calm. Chance of precipitation is 60%.

    Low: 64 °F

    Showers
    Likely and
    Patchy Fog

  • Thursday

    Thursday: A chance of showers before 10am, then a chance of showers and thunderstorms between 10am and 1pm, then showers and possibly a thunderstorm after 1pm. Patchy fog before 7am. High near 80. Calm wind becoming south southwest around 5 mph. Chance of precipitation is 80%.

    High: 80 °F

    Chance
    Showers and
    Patchy Fog
    then Showers

  • Thursday Night

    Thursday Night: A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1am. Mostly cloudy, with a low around 64. Calm wind becoming south southeast around 5 mph after midnight. Chance of precipitation is 70%.

    Low: 64 °F

    Chance
    T-storms then
    Showers
    Likely

  • Friday

    Friday: Showers and possibly a thunderstorm. High near 81. South wind around 10 mph, with gusts as high as 20 mph. Chance of precipitation is 80%.

    High: 81 °F

    Showers

  • Friday Night

    Friday Night: Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 64. South wind around 5 mph. Chance of precipitation is 70%.

    Low: 64 °F

    Showers
    Likely

Detailed Forecast

Tonight
Partly cloudy, with a low around 69. South wind 5 to 10 mph.
Tuesday
Partly sunny, with a high near 87. South southwest wind 5 to 10 mph, with gusts as high as 20 mph.
Tuesday Night
A slight chance of showers, then a chance of showers and thunderstorms after 3am. Increasing clouds, with a low around 67. South wind around 5 mph becoming calm in the evening. Chance of precipitation is 30%.
Wednesday
Showers and possibly a thunderstorm. High near 82. Calm wind becoming southwest around 5 mph in the afternoon. Chance of precipitation is 90%.
Wednesday Night
Showers likely and possibly a thunderstorm. Patchy fog after 11pm. Otherwise, mostly cloudy, with a low around 64. North wind around 5 mph becoming calm. Chance of precipitation is 60%.
Thursday
A chance of showers before 10am, then a chance of showers and thunderstorms between 10am and 1pm, then showers and possibly a thunderstorm after 1pm. Patchy fog before 7am. High near 80. Calm wind becoming south southwest around 5 mph. Chance of precipitation is 80%.
Thursday Night
A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1am. Mostly cloudy, with a low around 64. Calm wind becoming south southeast around 5 mph after midnight. Chance of precipitation is 70%.
Friday
Showers and possibly a thunderstorm. High near 81. South wind around 10 mph, with gusts as high as 20 mph. Chance of precipitation is 80%.
Friday Night
Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 64. South wind around 5 mph. Chance of precipitation is 70%.
Saturday
Showers likely and possibly a thunderstorm. Mostly cloudy, with a high near 81. Chance of precipitation is 70%.
Saturday Night
A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 64.
Sunday
Showers likely and possibly a thunderstorm. Partly sunny, with a high near 83. Chance of precipitation is 70%.
Sunday Night
A 40 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 65.
Memorial Day
Showers likely and possibly a thunderstorm. Partly sunny, with a high near 83. Chance of precipitation is 60%.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
8 Miles S Shelbyville TN
 35.39°N 86.46°W (Elev. 974 ft)
Last Update:
6:12 pm CDT May 18, 2026
Forecast Valid:
8pm CDT May 18, 2026-6pm CDT May 25, 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