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.

A Few Clouds

91°F

33°C

Humidity 52%
Wind Speed Vrbl 7 G 13 mph
Barometer 29.96 in
Dewpoint 72°F (22°C)
Visibility 10.00 mi
Heat Index98°F (37°C)
Last update 20 Aug 1:50 pm CDT
Extended Forecast for

3 Miles WNW Williamsport TN

  • This Afternoon

    This Afternoon: A 30 percent chance of showers and thunderstorms, mainly after 4pm. Mostly sunny, with a high near 93. Heat index values as high as 107. West wind around 5 mph.

    High: 93 °F

    Chance
    T-storms

  • Tonight

    Tonight: A chance of showers and thunderstorms before 10pm, then a slight chance of showers between 10pm and 1am. Patchy fog after 9pm. Otherwise, mostly cloudy, with a low around 70. Calm wind. Chance of precipitation is 30%.

    Low: 70 °F

    Chance
    T-storms and
    Patchy Fog

  • Friday

    Friday: Areas of fog before 10am. Otherwise, mostly sunny, with a high near 91. Heat index values as high as 99. Calm wind becoming north around 5 mph in the afternoon.

    High: 91 °F

    Areas Fog
    then Sunny

  • Friday Night

    Friday Night: Patchy fog after midnight. Otherwise, mostly clear, with a low around 67. Calm wind.

    Low: 67 °F

    Mostly Clear
    then Patchy
    Fog

  • Saturday

    Saturday: Areas of fog before 9am. Otherwise, sunny, with a high near 92. Calm wind becoming northwest around 5 mph in the afternoon.

    High: 92 °F

    Areas Fog
    then Sunny

  • Saturday Night

    Saturday Night: Patchy fog after 2am. Otherwise, mostly clear, with a low around 67. Calm wind.

    Low: 67 °F

    Mostly Clear
    then Patchy
    Fog

  • Sunday

    Sunday: Areas of fog before 8am. Otherwise, sunny, with a high near 90. Calm wind becoming north around 5 mph in the afternoon.

    High: 90 °F

    Areas Fog
    then Sunny

  • Sunday Night

    Sunday Night: A 20 percent chance of showers after 1am. Partly cloudy, with a low around 64. Calm wind.

    Low: 64 °F

    Partly Cloudy
    then Slight
    Chance
    Showers

  • Monday

    Monday: Mostly sunny, with a high near 89. Calm wind becoming north northwest around 5 mph.

    High: 89 °F

    Mostly Sunny

Detailed Forecast

This Afternoon
A 30 percent chance of showers and thunderstorms, mainly after 4pm. Mostly sunny, with a high near 93. Heat index values as high as 107. West wind around 5 mph.
Tonight
A chance of showers and thunderstorms before 10pm, then a slight chance of showers between 10pm and 1am. Patchy fog after 9pm. Otherwise, mostly cloudy, with a low around 70. Calm wind. Chance of precipitation is 30%.
Friday
Areas of fog before 10am. Otherwise, mostly sunny, with a high near 91. Heat index values as high as 99. Calm wind becoming north around 5 mph in the afternoon.
Friday Night
Patchy fog after midnight. Otherwise, mostly clear, with a low around 67. Calm wind.
Saturday
Areas of fog before 9am. Otherwise, sunny, with a high near 92. Calm wind becoming northwest around 5 mph in the afternoon.
Saturday Night
Patchy fog after 2am. Otherwise, mostly clear, with a low around 67. Calm wind.
Sunday
Areas of fog before 8am. Otherwise, sunny, with a high near 90. Calm wind becoming north around 5 mph in the afternoon.
Sunday Night
A 20 percent chance of showers after 1am. Partly cloudy, with a low around 64. Calm wind.
Monday
Mostly sunny, with a high near 89. Calm wind becoming north northwest around 5 mph.
Monday Night
A slight chance of showers, with thunderstorms also possible after 1am. Partly cloudy, with a low around 65. Chance of precipitation is 20%.
Tuesday
Mostly sunny, with a high near 92.
Tuesday Night
A 20 percent chance of showers and thunderstorms. Partly cloudy, with a low around 69.
Wednesday
A 30 percent chance of showers and thunderstorms. Mostly sunny, with a high near 93.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
3 Miles WNW Williamsport TN
 35.68°N 87.29°W (Elev. 577 ft)
Last Update:
1:31 pm CDT Aug 20, 2026
Forecast Valid:
2pm CDT Aug 20, 2026-6pm CDT Aug 26, 2026
 
Forecast Discussion
 
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Additional Resources

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Chance of Precipitation