Dangerous Heat and Heavy Rainfall into the Weekend

Hot temperatures and high humidity are forecast to continue across the mid-Mississippi Valley into this weekend. Heat Advisories remain in effect. Heavy to excessive rainfall occurring at times through the weekend could bring areas of flooding to parts of the northern Rockies, upper Midwest, central Great Lakes, and southern New England. Read More >

Current conditions at

Tullahoma Regional Airport/William Northern Field (KTHA)

Lat: 35.38°NLon: 86.25°WElev: 1083ft.

Fair

95°F

35°C

Humidity 34%
Wind Speed NW 9 mph
Barometer NA
Dewpoint 63°F (17°C)
Visibility 10.00 mi
Heat Index96°F (36°C)
Last update 19 Sep 12:15 pm CDT
Extended Forecast for

6 Miles ESE Lynchburg TN

Heat Advisory September 19, 12:41pm until September 19, 08:00pm
Click here for hazard details and duration
Heat Advisory
  •  
    Heat Advisory September 19, 12:41pm until September 19, 08:00pm

    NOW until 8:00pm Sat

    Heat Advisory

  • This Afternoon

    High: 97 °F

    Chance
    T-storms

  • Tonight

    Tonight: A 10 percent chance of showers and thunderstorms before 7pm.  Mostly clear, with a low around 70. Calm wind.

    Low: 70 °F

    Slight Chance
    T-storms then
    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 95. Heat index values as high as 99. South wind around 5 mph becoming calm.

    High: 95 °F

    Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 70. Calm wind.

    Low: 70 °F

    Partly Cloudy

  • Monday

    Monday: A 40 percent chance of showers and thunderstorms after 1pm.  Mostly sunny, with a high near 95. Calm wind.

    High: 95 °F

    Mostly Sunny
    then Chance
    T-storms

  • Monday Night

    Monday Night: A chance of showers and thunderstorms before 10pm, then a chance of showers between 10pm and 1am.  Mostly cloudy, with a low around 66. Chance of precipitation is 50%.

    Low: 66 °F

    Chance
    T-storms then
    Chance
    Showers

  • Tuesday

    Tuesday: A slight chance of showers before 10am, then a slight chance of showers and thunderstorms between 10am and 1pm, then showers likely and possibly a thunderstorm after 1pm.  Mostly sunny, with a high near 91. Chance of precipitation is 70%.

    High: 91 °F

    Slight Chance
    T-storms then
    Showers
    Likely

  • Tuesday Night

    Tuesday Night: Showers likely and possibly a thunderstorm before 1am, then a chance of showers.  Partly cloudy, with a low around 64. Chance of precipitation is 60%.

    Low: 64 °F

    Showers
    Likely

Detailed Forecast

This Afternoon
A slight chance of showers, then a chance of showers and thunderstorms after 1pm. Sunny and hot, with a high near 97. Heat index values as high as 101. Calm wind. Chance of precipitation is 40%.
Tonight
A 10 percent chance of showers and thunderstorms before 7pm. Mostly clear, with a low around 70. Calm wind.
Sunday
Sunny, with a high near 95. Heat index values as high as 99. South wind around 5 mph becoming calm.
Sunday Night
Partly cloudy, with a low around 70. Calm wind.
Monday
A 40 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 95. Calm wind.
Monday Night
A chance of showers and thunderstorms before 10pm, then a chance of showers between 10pm and 1am. Mostly cloudy, with a low around 66. Chance of precipitation is 50%.
Tuesday
A slight chance of showers before 10am, then a slight chance of showers and thunderstorms between 10am and 1pm, then showers likely and possibly a thunderstorm after 1pm. Mostly sunny, with a high near 91. Chance of precipitation is 70%.
Tuesday Night
Showers likely and possibly a thunderstorm before 1am, then a chance of showers. Partly cloudy, with a low around 64. Chance of precipitation is 60%.
Wednesday
A chance of showers, then showers likely and possibly a thunderstorm after 1pm. Mostly sunny, with a high near 83. Chance of precipitation is 60%.
Wednesday Night
A 20 percent chance of showers. Partly cloudy, with a low around 61.
Thursday
A 20 percent chance of showers. Mostly sunny, with a high near 82.
Thursday Night
Partly cloudy, with a low around 59.
Friday
Mostly sunny, with a high near 82.
Basemap Options
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ABOUT THIS FORECAST

 
Point Forecast:
6 Miles ESE Lynchburg TN
 35.24°N 86.27°W (Elev. 997 ft)
12:29 pm CDT Sep 19, 2026
12pm CDT Sep 19, 2026-6pm CDT Sep 25, 2026
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database