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

77°F

25°C

Humidity 83%
Wind Speed S 8 mph
Barometer 30.19 in
Dewpoint 72°F (22°C)
Visibility 10.00 mi
Heat Index78°F (26°C)
Last update 7 Aug 8:15 am CDT
Extended Forecast for

3 Miles N Arnold AFB TN

  • Today

    Today: A 30 percent chance of showers and thunderstorms, mainly between 1pm and 5pm. Mostly sunny, with a high near 88. Heat index values as high as 97. South wind around 5 mph.

    High: 88 °F

    Sunny then
    Chance
    T-storms

  • Tonight

    Tonight: Partly cloudy, with a low around 70. South wind around 5 mph becoming calm in the evening.

    Low: 70 °F

    Partly Cloudy

  • Saturday

    Saturday: Showers and thunderstorms likely, mainly between 1pm and 2pm. Mostly sunny, with a high near 88. Calm wind becoming south southwest around 5 mph. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    High: 88 °F

    Chance
    T-storms then
    T-storms
    Likely

  • Saturday Night

    Saturday Night: Patchy fog after 11pm. Otherwise, partly cloudy, with a low around 71. Calm wind.

    Low: 71 °F

    Patchy Fog

  • Sunday

    Sunday: A chance of showers, with thunderstorms also possible after 10am. Patchy fog before 9am. Otherwise, partly sunny, with a high near 89. Calm wind becoming south southwest around 5 mph. Chance of precipitation is 30%.

    High: 89 °F

    Chance
    Showers and
    Patchy Fog
    then Chance
    T-storms

  • Sunday Night

    Sunday Night: Patchy fog after 1am. Otherwise, partly cloudy, with a low around 71. Calm wind.

    Low: 71 °F

    Partly Cloudy
    then Patchy
    Fog

  • Monday

    Monday: A 30 percent chance of showers and thunderstorms. Patchy fog before 8am. Otherwise, mostly sunny, with a high near 90. Calm wind becoming southwest around 5 mph in the afternoon.

    High: 90 °F

    Chance
    T-storms and
    Patchy Fog

  • Monday Night

    Monday Night: Partly cloudy, with a low around 72. Calm wind.

    Low: 72 °F

    Partly Cloudy

  • Tuesday

    Tuesday: A 50 percent chance of showers and thunderstorms. Mostly sunny, with a high near 90. Calm wind becoming southwest around 5 mph in the morning.

    High: 90 °F

    Chance
    T-storms

Detailed Forecast

Today
A 30 percent chance of showers and thunderstorms, mainly between 1pm and 5pm. Mostly sunny, with a high near 88. Heat index values as high as 97. South wind around 5 mph.
Tonight
Partly cloudy, with a low around 70. South wind around 5 mph becoming calm in the evening.
Saturday
Showers and thunderstorms likely, mainly between 1pm and 2pm. Mostly sunny, with a high near 88. Calm wind becoming south southwest around 5 mph. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Saturday Night
Patchy fog after 11pm. Otherwise, partly cloudy, with a low around 71. Calm wind.
Sunday
A chance of showers, with thunderstorms also possible after 10am. Patchy fog before 9am. Otherwise, partly sunny, with a high near 89. Calm wind becoming south southwest around 5 mph. Chance of precipitation is 30%.
Sunday Night
Patchy fog after 1am. Otherwise, partly cloudy, with a low around 71. Calm wind.
Monday
A 30 percent chance of showers and thunderstorms. Patchy fog before 8am. Otherwise, mostly sunny, with a high near 90. Calm wind becoming southwest around 5 mph in the afternoon.
Monday Night
Partly cloudy, with a low around 72. Calm wind.
Tuesday
A 50 percent chance of showers and thunderstorms. Mostly sunny, with a high near 90. Calm wind becoming southwest around 5 mph in the morning.
Tuesday Night
A 30 percent chance of showers and thunderstorms, mainly after 1am. Partly cloudy, with a low around 71.
Wednesday
Showers and thunderstorms likely. Mostly sunny, with a high near 89. Chance of precipitation is 60%.
Wednesday Night
A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 71.
Thursday
Showers and thunderstorms likely. Partly sunny, with a high near 87. Chance of precipitation is 70%.
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ABOUT THIS FORECAST

 
Point Forecast:
3 Miles N Arnold AFB TN
 35.41°N 86.12°W (Elev. 997 ft)
Last Update:
5:26 am CDT Aug 7, 2026
Forecast Valid:
8am CDT Aug 7, 2026-6pm CDT Aug 13, 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