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

91°F

33°C

Humidity 49%
Wind Speed NW 6 G 12 mph
Barometer 30.01 in
Dewpoint 70°F (21°C)
Visibility 10.00 mi
Heat Index96°F (36°C)
Last update 19 Aug 12:50 pm CDT
Extended Forecast for

4 Miles E Williamsport TN

  • This Afternoon

    This Afternoon: Mostly sunny, with a high near 94. Heat index values as high as 102. Calm wind becoming southeast around 5 mph.

    High: 94 °F

    Mostly Sunny

  • Tonight

    Tonight: A 50 percent chance of showers and thunderstorms, mainly after 4am. Partly cloudy, with a low around 73. Calm wind becoming south around 5 mph. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    Low: 73 °F

    Slight Chance
    T-storms then
    Chance
    Showers

  • Thursday

    Thursday: A 50 percent chance of showers and thunderstorms, mainly after 5pm. Mostly sunny, with a high near 90. Heat index values as high as 99. South wind around 5 mph becoming calm. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 90 °F

    Chance
    T-storms then
    Chance
    Showers

  • Thursday Night

    Thursday Night: Showers and thunderstorms likely before 1am, then a chance of showers between 1am and 4am, then a chance of showers and thunderstorms after 4am. Patchy fog after 9pm. Otherwise, partly cloudy, with a low around 70. Calm wind. Chance of precipitation is 60%.

    Low: 70 °F

    Showers
    Likely and
    Patchy Fog

  • Friday

    Friday: A slight chance of showers and thunderstorms before 7am, then a slight chance of showers between 7am and 1pm. Areas of fog before 9am. Otherwise, mostly sunny, with a high near 90. Calm wind becoming north northwest around 5 mph. Chance of precipitation is 20%.

    High: 90 °F

    Slight Chance
    T-storms and
    Areas Fog

  • Friday Night

    Friday Night: Areas of fog after 10pm. Otherwise, mostly clear, with a low around 68. Calm wind.

    Low: 68 °F

    Areas Fog

  • Saturday

    Saturday: Areas of fog before 8am. Otherwise, sunny, with a high near 91. Calm wind becoming northwest around 5 mph in the afternoon.

    High: 91 °F

    Areas Fog
    then Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 68. Calm wind.

    Low: 68 °F

    Mostly Clear

  • Sunday

    Sunday: Mostly sunny, with a high near 90. Calm wind becoming north northwest around 5 mph in the afternoon.

    High: 90 °F

    Mostly Sunny

Detailed Forecast

This Afternoon
Mostly sunny, with a high near 94. Heat index values as high as 102. Calm wind becoming southeast around 5 mph.
Tonight
A 50 percent chance of showers and thunderstorms, mainly after 4am. Partly cloudy, with a low around 73. Calm wind becoming south around 5 mph. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Thursday
A 50 percent chance of showers and thunderstorms, mainly after 5pm. Mostly sunny, with a high near 90. Heat index values as high as 99. South wind around 5 mph becoming calm. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Thursday Night
Showers and thunderstorms likely before 1am, then a chance of showers between 1am and 4am, then a chance of showers and thunderstorms after 4am. Patchy fog after 9pm. Otherwise, partly cloudy, with a low around 70. Calm wind. Chance of precipitation is 60%.
Friday
A slight chance of showers and thunderstorms before 7am, then a slight chance of showers between 7am and 1pm. Areas of fog before 9am. Otherwise, mostly sunny, with a high near 90. Calm wind becoming north northwest around 5 mph. Chance of precipitation is 20%.
Friday Night
Areas of fog after 10pm. Otherwise, mostly clear, with a low around 68. Calm wind.
Saturday
Areas of fog before 8am. Otherwise, sunny, with a high near 91. Calm wind becoming northwest around 5 mph in the afternoon.
Saturday Night
Mostly clear, with a low around 68. Calm wind.
Sunday
Mostly sunny, with a high near 90. Calm wind becoming north northwest around 5 mph in the afternoon.
Sunday Night
Partly cloudy, with a low around 67.
Monday
A 20 percent chance of showers and thunderstorms. Mostly sunny, with a high near 90.
Monday Night
A 20 percent chance of showers. Partly cloudy, with a low around 68.
Tuesday
A 20 percent chance of showers and thunderstorms. Mostly sunny, with a high near 92.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
4 Miles E Williamsport TN
 35.65°N 87.16°W (Elev. 699 ft)
Last Update:
1:31 am CDT Aug 19, 2026
Forecast Valid:
1pm CDT Aug 19, 2026-6pm CDT Aug 25, 2026
 
Forecast Discussion
 
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Additional Resources

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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