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

Columbia / Maury County (KMRC)

Lat: 35.55°NLon: 87.18°WElev: 676ft.

Fair

84°F

29°C

Humidity 74%
Wind Speed Calm
Barometer 30.04 in
Dewpoint 75°F (24°C)
Visibility 10.00 mi
Heat Index92°F (33°C)
Last update 13 Jul 3:10 pm CDT
Extended Forecast for

Williamsport TN

  • This Afternoon

    This Afternoon: A 40 percent chance of showers and thunderstorms. Partly sunny, with a high near 90. Heat index values as high as 97. Calm wind becoming southwest around 5 mph.

    High: 90 °F

    Chance
    T-storms

  • Tonight

    Tonight: A 20 percent chance of showers and thunderstorms before 10pm. Patchy fog before 11pm, then patchy fog after midnight. Otherwise, partly cloudy, with a low around 71. Calm wind.

    Low: 71 °F

    Slight Chance
    T-storms and
    Patchy Fog
    then Patchy
    Fog

  • Monday

    Monday: A 40 percent chance of showers and thunderstorms, mainly after 1pm. Patchy fog before 9am. Otherwise, mostly sunny, with a high near 91. Heat index values as high as 99. Calm wind becoming west southwest around 5 mph.

    High: 91 °F

    Chance
    T-storms and
    Patchy Fog

  • Monday Night

    Monday Night: Patchy fog after 10pm. Otherwise, partly cloudy, with a low around 72. Calm wind.

    Low: 72 °F

    Patchy Fog

  • Tuesday

    Tuesday: A 30 percent chance of showers and thunderstorms after 1pm. Areas of fog before 8am. Otherwise, sunny, with a high near 92. Calm wind becoming west southwest around 5 mph.

    High: 92 °F

    Areas Fog
    then Chance
    T-storms

  • Tuesday Night

    Tuesday Night: Patchy fog after 10pm. Otherwise, mostly clear, with a low around 72. Calm wind.

    Low: 72 °F

    Patchy Fog

  • Wednesday

    Wednesday: A 40 percent chance of showers and thunderstorms, mainly after 1pm. Patchy fog before 8am. Otherwise, mostly sunny, with a high near 93. Calm wind becoming south around 5 mph.

    High: 93 °F

    Chance
    T-storms and
    Patchy Fog

  • Wednesday Night

    Wednesday Night: Patchy fog after 1am. Otherwise, partly cloudy, with a low around 73. Calm wind.

    Low: 73 °F

    Partly Cloudy
    then Patchy
    Fog

  • Thursday

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

    High: 91 °F

    Chance
    T-storms

Detailed Forecast

This Afternoon
A 40 percent chance of showers and thunderstorms. Partly sunny, with a high near 90. Heat index values as high as 97. Calm wind becoming southwest around 5 mph.
Tonight
A 20 percent chance of showers and thunderstorms before 10pm. Patchy fog before 11pm, then patchy fog after midnight. Otherwise, partly cloudy, with a low around 71. Calm wind.
Monday
A 40 percent chance of showers and thunderstorms, mainly after 1pm. Patchy fog before 9am. Otherwise, mostly sunny, with a high near 91. Heat index values as high as 99. Calm wind becoming west southwest around 5 mph.
Monday Night
Patchy fog after 10pm. Otherwise, partly cloudy, with a low around 72. Calm wind.
Tuesday
A 30 percent chance of showers and thunderstorms after 1pm. Areas of fog before 8am. Otherwise, sunny, with a high near 92. Calm wind becoming west southwest around 5 mph.
Tuesday Night
Patchy fog after 10pm. Otherwise, mostly clear, with a low around 72. Calm wind.
Wednesday
A 40 percent chance of showers and thunderstorms, mainly after 1pm. Patchy fog before 8am. Otherwise, mostly sunny, with a high near 93. Calm wind becoming south around 5 mph.
Wednesday Night
Patchy fog after 1am. Otherwise, partly cloudy, with a low around 73. Calm wind.
Thursday
A 40 percent chance of showers and thunderstorms, mainly after 1pm. Mostly sunny, with a high near 91. Calm wind becoming south southwest around 5 mph.
Thursday Night
A 20 percent chance of showers and thunderstorms before 1am. Patchy fog after 11pm. Otherwise, partly cloudy, with a low around 72.
Friday
A 50 percent chance of showers and thunderstorms. Mostly sunny, with a high near 90.
Friday Night
A 20 percent chance of showers and thunderstorms. Patchy fog. Otherwise, mostly cloudy, with a low around 73.
Saturday
Showers and thunderstorms likely. Mostly sunny, with a high near 89. Chance of precipitation is 60%.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Williamsport TN
 35.63°N 87.24°W (Elev. 705 ft)
Last Update:
3:23 pm CDT Jul 13, 2025
Forecast Valid:
3pm CDT Jul 13, 2025-6pm CDT Jul 19, 2025
 
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