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 S 8 mph
Barometer 30.12 in
Dewpoint 66°F (19°C)
Visibility 10.00 mi
Heat Index94°F (34°C)
Last update 9 Sep 4:35 pm CDT
Extended Forecast for

Arnold AFB TN

  • Tonight

    Tonight: Mostly clear, with a low around 68. South wind around 5 mph becoming calm.

    Low: 68 °F

    Mostly Clear

  • Thursday

    Thursday: Mostly sunny, with a high near 92. South wind around 5 mph becoming west southwest in the afternoon.

    High: 92 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Patchy fog before 3am, then patchy fog after 4am. Otherwise, mostly clear, with a low around 68. Calm wind.

    Low: 68 °F

    Mostly Clear
    then Patchy
    Fog

  • Friday

    Friday: A 50 percent chance of showers and thunderstorms after 1pm. Patchy fog before 7am. Otherwise, mostly sunny, with a high near 92. Heat index values as high as 99. Calm wind becoming southwest around 5 mph in the afternoon.

    High: 92 °F

    Patchy Fog
    then Chance
    T-storms

  • Friday Night

    Friday Night: A chance of showers and thunderstorms. Patchy fog between 9pm and midnight. Otherwise, mostly cloudy, with a low around 67. Calm wind. Chance of precipitation is 40%.

    Low: 67 °F

    Chance
    Showers and
    Patchy Fog

  • Saturday

    Saturday: Showers likely, then showers and possibly a thunderstorm after 10am. High near 89. Calm wind becoming south southwest around 5 mph. Chance of precipitation is 80%.

    High: 89 °F

    Showers

  • Saturday Night

    Saturday Night: A 30 percent chance of showers and thunderstorms, mainly before 1am. Partly cloudy, with a low around 66. Calm wind.

    Low: 66 °F

    Chance
    T-storms

  • Sunday

    Sunday: A 40 percent chance of showers and thunderstorms, mainly after 1pm. Mostly sunny, with a high near 91. Calm wind becoming southwest around 5 mph.

    High: 91 °F

    Chance
    T-storms

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 67. Calm wind.

    Low: 67 °F

    Mostly Clear

Detailed Forecast

Tonight
Mostly clear, with a low around 68. South wind around 5 mph becoming calm.
Thursday
Mostly sunny, with a high near 92. South wind around 5 mph becoming west southwest in the afternoon.
Thursday Night
Patchy fog before 3am, then patchy fog after 4am. Otherwise, mostly clear, with a low around 68. Calm wind.
Friday
A 50 percent chance of showers and thunderstorms after 1pm. Patchy fog before 7am. Otherwise, mostly sunny, with a high near 92. Heat index values as high as 99. Calm wind becoming southwest around 5 mph in the afternoon.
Friday Night
A chance of showers and thunderstorms. Patchy fog between 9pm and midnight. Otherwise, mostly cloudy, with a low around 67. Calm wind. Chance of precipitation is 40%.
Saturday
Showers likely, then showers and possibly a thunderstorm after 10am. High near 89. Calm wind becoming south southwest around 5 mph. Chance of precipitation is 80%.
Saturday Night
A 30 percent chance of showers and thunderstorms, mainly before 1am. Partly cloudy, with a low around 66. Calm wind.
Sunday
A 40 percent chance of showers and thunderstorms, mainly after 1pm. Mostly sunny, with a high near 91. Calm wind becoming southwest around 5 mph.
Sunday Night
Mostly clear, with a low around 67. Calm wind.
Monday
A 20 percent chance of showers and thunderstorms after 1pm. Sunny, with a high near 92.
Monday Night
Mostly clear, with a low around 68.
Tuesday
A 40 percent chance of showers and thunderstorms. Sunny, with a high near 92.
Tuesday Night
Mostly clear, with a low around 69.
Wednesday
A 30 percent chance of showers and thunderstorms. Sunny, with a high near 93.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Arnold AFB TN
 35.39°N 86.15°W (Elev. 1063 ft)
Last Update:
1:31 pm CDT Sep 9, 2026
Forecast Valid:
5pm CDT Sep 9, 2026-6pm CDT Sep 16, 2026
 
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Additional Resources

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation