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

91°F

33°C

Humidity 44%
Wind Speed NE 5 mph
Barometer 29.94 in
Dewpoint 66°F (19°C)
Visibility 10.00 mi
Heat Index94°F (34°C)
Last update 19 Aug 5:35 pm CDT
Extended Forecast for

4 Miles E Arnold AFB TN

  • This Afternoon

    This Afternoon: A 20 percent chance of showers and thunderstorms. Sunny, with a high near 93. Heat index values as high as 99. Calm wind.

    High: 93 °F

    Slight Chance
    T-storms

  • Tonight

    Tonight: A 10 percent chance of showers and thunderstorms before 7pm. Mostly clear, with a low around 72. Calm wind.

    Low: 72 °F

    Slight Chance
    T-storms then
    Mostly Clear

  • Wednesday

    Wednesday: Showers and thunderstorms likely, mainly before 3pm, then showers likely and possibly a thunderstorm after 5pm. Mostly sunny, with a high near 89. Heat index values as high as 97. Calm wind becoming north northeast around 5 mph. Chance of precipitation is 60%. New rainfall amounts between a quarter and half of an inch possible.

    High: 89 °F

    Chance
    T-storms then
    T-storms
    Likely

  • Wednesday Night

    Wednesday Night: Showers and thunderstorms likely before 10pm, then a slight chance of showers between 10pm and midnight. Some of the storms could produce heavy rainfall. Partly cloudy, with a low around 68. Calm wind. Chance of precipitation is 60%.

    Low: 68 °F

    Heavy Rain
    then Partly
    Cloudy

  • Thursday

    Thursday: A 30 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 86. Calm wind becoming north around 5 mph in the afternoon.

    High: 86 °F

    Partly Sunny
    then Chance
    Showers

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 66. North wind around 5 mph becoming calm.

    Low: 66 °F

    Partly Cloudy

  • Friday

    Friday: A 30 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 88. Calm wind.

    High: 88 °F

    Mostly Sunny
    then Chance
    T-storms

  • Friday Night

    Friday Night: Partly cloudy, with a low around 67. Calm wind.

    Low: 67 °F

    Partly Cloudy

  • Saturday

    Saturday: A 40 percent chance of showers and thunderstorms, mainly after 1pm. Mostly sunny, with a high near 85. Calm wind.

    High: 85 °F

    Chance
    T-storms

Detailed Forecast

This Afternoon
A 20 percent chance of showers and thunderstorms. Sunny, with a high near 93. Heat index values as high as 99. Calm wind.
Tonight
A 10 percent chance of showers and thunderstorms before 7pm. Mostly clear, with a low around 72. Calm wind.
Wednesday
Showers and thunderstorms likely, mainly before 3pm, then showers likely and possibly a thunderstorm after 5pm. Mostly sunny, with a high near 89. Heat index values as high as 97. Calm wind becoming north northeast around 5 mph. Chance of precipitation is 60%. New rainfall amounts between a quarter and half of an inch possible.
Wednesday Night
Showers and thunderstorms likely before 10pm, then a slight chance of showers between 10pm and midnight. Some of the storms could produce heavy rainfall. Partly cloudy, with a low around 68. Calm wind. Chance of precipitation is 60%.
Thursday
A 30 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 86. Calm wind becoming north around 5 mph in the afternoon.
Thursday Night
Partly cloudy, with a low around 66. North wind around 5 mph becoming calm.
Friday
A 30 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 88. Calm wind.
Friday Night
Partly cloudy, with a low around 67. Calm wind.
Saturday
A 40 percent chance of showers and thunderstorms, mainly after 1pm. Mostly sunny, with a high near 85. Calm wind.
Saturday Night
Partly cloudy, with a low around 66.
Sunday
A 20 percent chance of showers and thunderstorms. Mostly sunny, with a high near 85.
Sunday Night
Mostly clear, with a low around 60.
Monday
Sunny, with a high near 80.
Monday Night
Partly cloudy, with a low around 56.
Tuesday
Mostly sunny, with a high near 77.
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ABOUT THIS FORECAST

 
Point Forecast:
4 Miles E Arnold AFB TN
 35.39°N 86.07°W (Elev. 1056 ft)
Last Update:
12:28 pm CDT Aug 19, 2025
Forecast Valid:
5pm CDT Aug 19, 2025-6pm CDT Aug 26, 2025
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation