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

82°F

28°C

Humidity 62%
Wind Speed Calm
Barometer NA
Dewpoint 68°F (20°C)
Visibility 10.00 mi
Heat Index85°F (29°C)
Last update 18 Sep 7:35 pm CDT
Extended Forecast for

Normandy TN

Heat Advisory September 18, 07:52pm until September 20, 07:00pm
Click here for hazard details and duration
Heat Advisory
  •  
    Heat Advisory September 18, 07:52pm until September 20, 07:00pm

    NOW until 7:00pm Sun

    Heat Advisory

  • Tonight

    Low: 71 °F

    Mostly Clear

  • Saturday

    Saturday: A 20 percent chance of showers and thunderstorms after 3pm. Sunny and hot, with a high near 98. Heat index values as high as 102. Calm wind becoming west around 5 mph in the afternoon.

    High: 98 °F

    Sunny then
    Slight Chance
    T-storms

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 71. Calm wind.

    Low: 71 °F

    Partly Cloudy

  • Sunday

    Sunday: Mostly sunny and hot, with a high near 97. Heat index values as high as 102. South southeast wind around 5 mph becoming west southwest in the afternoon.

    High: 97 °F

    Hot

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 69. Calm wind.

    Low: 69 °F

    Partly Cloudy

  • Monday

    Monday: A 40 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 96. Calm wind becoming west southwest around 5 mph in the afternoon.

    High: 96 °F

    Mostly Sunny
    then Chance
    T-storms

  • Monday Night

    Monday Night: A 50 percent chance of showers and thunderstorms, mainly before 1am. Mostly cloudy, with a low around 66. South wind around 5 mph becoming calm.

    Low: 66 °F

    Chance
    T-storms

  • Tuesday

    Tuesday: A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1pm. Mostly sunny, with a high near 91. Calm wind becoming west northwest around 5 mph in the afternoon. Chance of precipitation is 60%.

    High: 91 °F

    Chance
    Showers then
    Showers
    Likely

Detailed Forecast

Tonight
Mostly clear, with a low around 71. Calm wind.
Saturday
A 20 percent chance of showers and thunderstorms after 3pm. Sunny and hot, with a high near 98. Heat index values as high as 102. Calm wind becoming west around 5 mph in the afternoon.
Saturday Night
Partly cloudy, with a low around 71. Calm wind.
Sunday
Mostly sunny and hot, with a high near 97. Heat index values as high as 102. South southeast wind around 5 mph becoming west southwest in the afternoon.
Sunday Night
Partly cloudy, with a low around 69. Calm wind.
Monday
A 40 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 96. Calm wind becoming west southwest around 5 mph in the afternoon.
Monday Night
A 50 percent chance of showers and thunderstorms, mainly before 1am. Mostly cloudy, with a low around 66. South wind around 5 mph becoming calm.
Tuesday
A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1pm. Mostly sunny, with a high near 91. Calm wind becoming west northwest around 5 mph in the afternoon. Chance of precipitation is 60%.
Tuesday Night
A chance of showers and thunderstorms before 1am, then a slight chance of showers. Partly cloudy, with a low around 63. Northeast wind around 5 mph becoming calm in the evening. Chance of precipitation is 40%.
Wednesday
A 40 percent chance of showers. Partly sunny, with a high near 85.
Wednesday Night
Partly cloudy, with a low around 60.
Thursday
Mostly sunny, with a high near 82.
Thursday Night
Partly cloudy, with a low around 59.
Friday
Mostly sunny, with a high near 83.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Normandy TN
 35.47°N 86.28°W (Elev. 784 ft)
Last Update:
7:01 pm CDT Sep 18, 2026
Forecast Valid:
7pm CDT Sep 18, 2026-6pm CDT Sep 25, 2026
 
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