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

Hazardous Weather Conditions

Current conditions at

Tullahoma Regional Airport/William Northern Field (KTHA)

Lat: 35.38°NLon: 86.25°WElev: 1083ft.

Fair

95°F

35°C

Humidity 34%
Wind Speed Vrbl 5 G 13 mph
Barometer NA
Dewpoint 63°F (17°C)
Visibility 10.00 mi
Heat Index96°F (36°C)
Last update 17 Sep 2:35 pm CDT
Extended Forecast for

8 Miles S Shelbyville TN

Heat Advisory September 17, 02:49pm until September 19, 08:00pm
Click here for hazard details and duration
Heat Advisory
  •  
    Heat Advisory September 17, 02:49pm until September 19, 08:00pm

    NOW until 8:00pm Sat

    Heat Advisory

  • This Afternoon

    High: 97 °F

    Hot

  • Tonight

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

    Low: 72 °F

    Mostly Clear

  • Friday

    Friday: Sunny and hot, with a high near 97. Heat index values as high as 102. Calm wind becoming north around 5 mph in the afternoon.

    High: 97 °F

    Hot

  • Friday Night

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

    Low: 72 °F

    Mostly Clear

  • Saturday

    Saturday: A 20 percent chance of showers and thunderstorms after 1pm. Sunny and hot, with a high near 97. Calm wind becoming west northwest around 5 mph.

    High: 97 °F

    Sunny then
    Slight Chance
    T-storms

  • Saturday Night

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

    Low: 70 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 96. South wind around 5 mph becoming west in the afternoon.

    High: 96 °F

    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 70. South wind around 5 mph.

    Low: 70 °F

    Mostly Clear

Detailed Forecast

This Afternoon
Sunny and hot, with a high near 97. Heat index values as high as 101. North wind around 5 mph.
Tonight
Mostly clear, with a low around 72. Calm wind.
Friday
Sunny and hot, with a high near 97. Heat index values as high as 102. Calm wind becoming north around 5 mph in the afternoon.
Friday Night
Mostly clear, with a low around 72. Calm wind.
Saturday
A 20 percent chance of showers and thunderstorms after 1pm. Sunny and hot, with a high near 97. Calm wind becoming west northwest around 5 mph.
Saturday Night
Mostly clear, with a low around 70. Calm wind becoming south around 5 mph.
Sunday
Sunny, with a high near 96. South wind around 5 mph becoming west in the afternoon.
Sunday Night
Mostly clear, with a low around 70. South wind around 5 mph.
Monday
A 30 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 96. South wind around 5 mph becoming west southwest in the afternoon.
Monday Night
A chance of showers and thunderstorms before 1am, then a slight chance of showers. Partly cloudy, with a low around 68. Chance of precipitation is 40%.
Tuesday
A 40 percent chance of showers and thunderstorms. Mostly sunny, with a high near 92.
Tuesday Night
A 20 percent chance of showers and thunderstorms. Partly cloudy, with a low around 64.
Wednesday
A 20 percent chance of showers. Mostly sunny, with a high near 87.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
8 Miles S Shelbyville TN
 35.39°N 86.46°W (Elev. 974 ft)
Last Update:
2:36 pm CDT Sep 17, 2026
Forecast Valid:
2pm CDT Sep 17, 2026-6pm CDT Sep 23, 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