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

81°F

27°C

Humidity 51%
Wind Speed SE 6 mph
Barometer 30.04 in
Dewpoint 61°F (16°C)
Visibility 10.00 mi
Heat Index82°F (28°C)
Last update 20 Jun 11:10 am CDT
Extended Forecast for

Williamsport TN

  • Today

    Today: Sunny, with a high near 86. Calm wind.

    High: 86 °F

    Sunny

  • Tonight

    Tonight: Patchy fog after 11pm. Otherwise, mostly clear, with a low around 66. Calm wind.

    Low: 66 °F

    Patchy Fog

  • Sunday

    Sunday: A 40 percent chance of showers and thunderstorms, mainly after 1pm. Patchy fog before 8am. Otherwise, mostly sunny, with a high near 89. Light and variable wind becoming south southwest 5 to 10 mph in the morning. Winds could gust as high as 20 mph.

    High: 89 °F

    Patchy Fog
    then Chance
    T-storms

  • Sunday Night

    Sunday Night: A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1am. Increasing clouds, with a low around 72. South wind around 10 mph, with gusts as high as 20 mph. Chance of precipitation is 60%.

    Low: 72 °F

    Chance
    T-storms then
    Showers
    Likely

  • Monday

    Monday: Showers and possibly a thunderstorm. High near 84. Southwest wind 10 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 90%.

    High: 84 °F

    Showers

  • Monday Night

    Monday Night: A 50 percent chance of showers and thunderstorms. Patchy fog after 9pm. Otherwise, mostly cloudy, with a low around 66. West wind around 5 mph becoming calm in the evening.

    Low: 66 °F

    Chance
    T-storms and
    Patchy Fog

  • Tuesday

    Tuesday: A 40 percent chance of showers and thunderstorms. Patchy fog before 9am. Otherwise, partly sunny, with a high near 84. Calm wind becoming north northwest around 5 mph.

    High: 84 °F

    Chance
    Showers and
    Patchy Fog
    then Chance
    T-storms

  • Tuesday Night

    Tuesday Night: A slight chance of showers and thunderstorms. Partly cloudy, with a low around 64. Calm wind. Chance of precipitation is 20%.

    Low: 64 °F

    Slight Chance
    T-storms

  • Wednesday

    Wednesday: A 30 percent chance of showers and thunderstorms, mainly after 1pm. Mostly sunny, with a high near 85. Calm wind.

    High: 85 °F

    Chance
    T-storms

Detailed Forecast

Today
Sunny, with a high near 86. Calm wind.
Tonight
Patchy fog after 11pm. Otherwise, mostly clear, with a low around 66. Calm wind.
Sunday
A 40 percent chance of showers and thunderstorms, mainly after 1pm. Patchy fog before 8am. Otherwise, mostly sunny, with a high near 89. Light and variable wind becoming south southwest 5 to 10 mph in the morning. Winds could gust as high as 20 mph.
Sunday Night
A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1am. Increasing clouds, with a low around 72. South wind around 10 mph, with gusts as high as 20 mph. Chance of precipitation is 60%.
Monday
Showers and possibly a thunderstorm. High near 84. Southwest wind 10 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 90%.
Monday Night
A 50 percent chance of showers and thunderstorms. Patchy fog after 9pm. Otherwise, mostly cloudy, with a low around 66. West wind around 5 mph becoming calm in the evening.
Tuesday
A 40 percent chance of showers and thunderstorms. Patchy fog before 9am. Otherwise, partly sunny, with a high near 84. Calm wind becoming north northwest around 5 mph.
Tuesday Night
A slight chance of showers and thunderstorms. Partly cloudy, with a low around 64. Calm wind. Chance of precipitation is 20%.
Wednesday
A 30 percent chance of showers and thunderstorms, mainly after 1pm. Mostly sunny, with a high near 85. Calm wind.
Wednesday Night
Mostly clear, with a low around 64.
Thursday
A 20 percent chance of showers and thunderstorms. Mostly sunny, with a high near 86.
Thursday Night
A 20 percent chance of showers and thunderstorms. Partly cloudy, with a low around 64.
Friday
A 30 percent chance of showers and thunderstorms. Mostly sunny, with a high near 86.
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ABOUT THIS FORECAST

 
Point Forecast:
Williamsport TN
 35.63°N 87.24°W (Elev. 705 ft)
Last Update:
6:52 am CDT Jun 20, 2026
Forecast Valid:
11am CDT Jun 20, 2026-6pm CDT Jun 26, 2026
 
Forecast Discussion
 
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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

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation