National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Hazardous Weather Conditions

Current conditions at

Columbia / Maury County (KMRC)

Lat: 35.55°NLon: 87.18°WElev: 676ft.

A Few Clouds

91°F

33°C

Humidity 46%
Wind Speed Calm
Barometer 30.22 in
Dewpoint 68°F (20°C)
Visibility 10.00 mi
Heat Index95°F (35°C)
Last update 16 Sep 6:10 pm CDT
Extended Forecast for

4 Miles E Williamsport TN

Heat Advisory September 16, 06:26pm until September 19, 08:00pm
Click here for hazard details and duration
Heat Advisory
  •  
    Heat Advisory September 16, 06:26pm until September 19, 08:00pm

    NOW until 8:00pm Sat

    Heat Advisory

  • Tonight

    Low: 72 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny and hot, with a high near 99. Heat index values as high as 106. Calm wind becoming west around 5 mph.

    High: 99 °F

    Hot

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 73. Calm wind.

    Low: 73 °F

    Mostly Clear

  • Friday

    Friday: Sunny and hot, with a high near 99. Heat index values as high as 107. Calm wind becoming north northwest around 5 mph.

    High: 99 °F

    Hot

  • Friday Night

    Friday Night: Mostly clear, with a low around 71. Calm wind.

    Low: 71 °F

    Mostly Clear

  • Saturday

    Saturday: Patchy fog before 7am. Otherwise, sunny and hot, with a high near 98. Calm wind.

    High: 98 °F

    Patchy Fog
    then Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 72. Calm wind becoming south around 5 mph.

    Low: 72 °F

    Partly Cloudy

  • Sunday

    Sunday: Mostly sunny and hot, with a high near 98. South wind around 5 mph becoming calm.

    High: 98 °F

    Hot

Detailed Forecast

Tonight
Mostly clear, with a low around 72. Calm wind.
Thursday
Sunny and hot, with a high near 99. Heat index values as high as 106. Calm wind becoming west around 5 mph.
Thursday Night
Mostly clear, with a low around 73. Calm wind.
Friday
Sunny and hot, with a high near 99. Heat index values as high as 107. Calm wind becoming north northwest around 5 mph.
Friday Night
Mostly clear, with a low around 71. Calm wind.
Saturday
Patchy fog before 7am. Otherwise, sunny and hot, with a high near 98. Calm wind.
Saturday Night
Partly cloudy, with a low around 72. Calm wind becoming south around 5 mph.
Sunday
Mostly sunny and hot, with a high near 98. South wind around 5 mph becoming calm.
Sunday Night
Partly cloudy, with a low around 71. Calm wind.
Monday
A 30 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 96.
Monday Night
A 30 percent chance of showers and thunderstorms. Partly cloudy, with a low around 68.
Tuesday
A 40 percent chance of showers and thunderstorms. Mostly sunny, with a high near 93.
Tuesday Night
Partly cloudy, with a low around 67.
Wednesday
A 30 percent chance of showers and thunderstorms. Mostly sunny, with a high near 90.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
4 Miles E Williamsport TN
 35.65°N 87.16°W (Elev. 699 ft)
Last Update:
1:31 pm CDT Sep 16, 2026
Forecast Valid:
6pm CDT Sep 16, 2026-6pm CDT Sep 23, 2026
 
Forecast Discussion
 
Get as KML Get as XML

Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

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