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.

Overcast

77°F

25°C

Humidity 79%
Wind Speed N 12 mph
Barometer 29.90 in
Dewpoint 70°F (21°C)
Visibility 10.00 mi
Heat Index79°F (26°C)
Last update 3 Aug 2:35 pm CDT
Extended Forecast for

4 Miles E Arnold AFB TN

  • This Afternoon

    This Afternoon: A 30 percent chance of showers and thunderstorms, mainly before 4pm. Partly sunny, with a high near 82. North wind around 5 mph.

    High: 82 °F

    Chance
    T-storms

  • Tonight

    Tonight: Patchy fog after 2am. Otherwise, mostly clear, with a low around 66. North northeast wind around 5 mph becoming calm in the evening.

    Low: 66 °F

    Mostly Clear
    then Patchy
    Fog

  • Tuesday

    Tuesday: A 40 percent chance of showers and thunderstorms after 1pm. Patchy fog before 9am. Otherwise, mostly sunny, with a high near 85. Calm wind becoming north around 5 mph.

    High: 85 °F

    Patchy Fog
    then Chance
    T-storms

  • Tuesday Night

    Tuesday Night: Patchy fog after 10pm. Otherwise, partly cloudy, with a low around 69. Calm wind.

    Low: 69 °F

    Patchy Fog

  • Wednesday

    Wednesday: A chance of showers before 10am, then a chance of showers and thunderstorms between 10am and 1pm, then showers and possibly a thunderstorm after 1pm. Patchy fog before 9am. High near 85. Calm wind. Chance of precipitation is 80%.

    High: 85 °F

    Chance
    T-storms and
    Patchy Fog
    then Showers

  • Wednesday Night

    Wednesday Night: Patchy fog between 10pm and midnight. Otherwise, partly cloudy, with a low around 70. Calm wind.

    Low: 70 °F

    Patchy Fog
    then Mostly
    Clear

  • Thursday

    Thursday: A slight chance of showers, then a chance of showers and thunderstorms after 10am. Mostly sunny, with a high near 87. South southeast wind around 5 mph becoming southwest in the afternoon. Chance of precipitation is 40%.

    High: 87 °F

    Chance
    T-storms

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 71. South southeast wind around 5 mph becoming calm.

    Low: 71 °F

    Partly Cloudy

  • Friday

    Friday: A 50 percent chance of showers and thunderstorms, mainly after 1pm. Mostly sunny, with a high near 87. South wind around 5 mph.

    High: 87 °F

    Slight Chance
    T-storms then
    Chance
    T-storms

Detailed Forecast

This Afternoon
A 30 percent chance of showers and thunderstorms, mainly before 4pm. Partly sunny, with a high near 82. North wind around 5 mph.
Tonight
Patchy fog after 2am. Otherwise, mostly clear, with a low around 66. North northeast wind around 5 mph becoming calm in the evening.
Tuesday
A 40 percent chance of showers and thunderstorms after 1pm. Patchy fog before 9am. Otherwise, mostly sunny, with a high near 85. Calm wind becoming north around 5 mph.
Tuesday Night
Patchy fog after 10pm. Otherwise, partly cloudy, with a low around 69. Calm wind.
Wednesday
A chance of showers before 10am, then a chance of showers and thunderstorms between 10am and 1pm, then showers and possibly a thunderstorm after 1pm. Patchy fog before 9am. High near 85. Calm wind. Chance of precipitation is 80%.
Wednesday Night
Patchy fog between 10pm and midnight. Otherwise, partly cloudy, with a low around 70. Calm wind.
Thursday
A slight chance of showers, then a chance of showers and thunderstorms after 10am. Mostly sunny, with a high near 87. South southeast wind around 5 mph becoming southwest in the afternoon. Chance of precipitation is 40%.
Thursday Night
Partly cloudy, with a low around 71. South southeast wind around 5 mph becoming calm.
Friday
A 50 percent chance of showers and thunderstorms, mainly after 1pm. Mostly sunny, with a high near 87. South wind around 5 mph.
Friday Night
A slight chance of showers and thunderstorms. Partly cloudy, with a low around 70. Chance of precipitation is 20%.
Saturday
Showers and thunderstorms likely. Mostly sunny, with a high near 87. Chance of precipitation is 60%.
Saturday Night
A 20 percent chance of showers and thunderstorms. Partly cloudy, with a low around 71.
Sunday
Showers and thunderstorms likely. Mostly sunny, with a high near 87. Chance of precipitation is 60%.
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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:
1:31 pm CDT Aug 3, 2026
Forecast Valid:
2pm CDT Aug 3, 2026-6pm CDT Aug 9, 2026
 
Forecast Discussion
 
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Additional Resources

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High Temperature

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Chance of Precipitation