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Hazardous Weather Conditions

Current conditions at

Tullahoma Regional Airport/William Northern Field (KTHA)

Lat: 35.38°NLon: 86.25°WElev: 1083ft.

Fair

72°F

22°C

Humidity 100%
Wind Speed Calm
Barometer 30.12 in
Dewpoint 72°F (22°C)
Visibility 9.00 mi
Last update 16 Aug 3:15 am CDT
Extended Forecast for

4 Miles ENE Arnold AFB TN

Heat Advisory August 16, 03:42am until August 16, 07:00pm
Click here for hazard details and duration
Heat Advisory
  •  
    Heat Advisory August 16, 03:42am until August 16, 07:00pm

    NOW until 7:00pm Sun

    Heat Advisory

  • Overnight

    Low: 73 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny and hot, with a high near 97. Heat index values as high as 105. Calm wind becoming west around 5 mph in the afternoon.

    High: 97 °F

    Hot

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 75. Calm wind.

    Low: 75 °F

    Mostly Clear

  • Monday

    Monday: Showers likely and possibly a thunderstorm between 1pm and 2pm, then a chance of showers and thunderstorms after 2pm. Sunny, with a high near 95. Heat index values as high as 106. Calm wind becoming west around 5 mph in the afternoon. Chance of precipitation is 60%.

    High: 95 °F

    Sunny then
    Showers
    Likely

  • Monday Night

    Monday Night: A slight chance of showers and thunderstorms before 10pm, then a slight chance of showers between 10pm and 1am. Patchy fog after 2am. Otherwise, partly cloudy, with a low around 72. North northwest wind around 5 mph becoming calm. Chance of precipitation is 20%.

    Low: 72 °F

    Slight Chance
    T-storms and
    Patchy Fog

  • Tuesday

    Tuesday: Areas of fog before 8am. Otherwise, sunny, with a high near 91. Calm wind becoming north northwest around 5 mph in the afternoon.

    High: 91 °F

    Areas Fog
    then Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 70. Calm wind.

    Low: 70 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 94. Calm wind becoming west around 5 mph.

    High: 94 °F

    Sunny

Detailed Forecast

Overnight
Mostly clear, with a low around 73. Calm wind.
Sunday
Sunny and hot, with a high near 97. Heat index values as high as 105. Calm wind becoming west around 5 mph in the afternoon.
Sunday Night
Mostly clear, with a low around 75. Calm wind.
Monday
Showers likely and possibly a thunderstorm between 1pm and 2pm, then a chance of showers and thunderstorms after 2pm. Sunny, with a high near 95. Heat index values as high as 106. Calm wind becoming west around 5 mph in the afternoon. Chance of precipitation is 60%.
Monday Night
A slight chance of showers and thunderstorms before 10pm, then a slight chance of showers between 10pm and 1am. Patchy fog after 2am. Otherwise, partly cloudy, with a low around 72. North northwest wind around 5 mph becoming calm. Chance of precipitation is 20%.
Tuesday
Areas of fog before 8am. Otherwise, sunny, with a high near 91. Calm wind becoming north northwest around 5 mph in the afternoon.
Tuesday Night
Mostly clear, with a low around 70. Calm wind.
Wednesday
Sunny, with a high near 94. Calm wind becoming west around 5 mph.
Wednesday Night
Partly cloudy, with a low around 72. Calm wind.
Thursday
A 40 percent chance of showers and thunderstorms. Mostly sunny, with a high near 91.
Thursday Night
A 30 percent chance of showers and thunderstorms. Partly cloudy, with a low around 69.
Friday
A 40 percent chance of showers and thunderstorms. Mostly sunny, with a high near 88.
Friday Night
A 30 percent chance of showers and thunderstorms. Partly cloudy, with a low around 67.
Saturday
A 30 percent chance of showers and thunderstorms. Mostly sunny, with a high near 87.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
4 Miles ENE Arnold AFB TN
 35.39°N 86.07°W (Elev. 1056 ft)
Last Update:
1:31 am CDT Aug 16, 2026
Forecast Valid:
3am CDT Aug 16, 2026-6pm CDT Aug 22, 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