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

68°F

20°C

Humidity 100%
Wind Speed SW 10 mph
Barometer 29.83 in
Dewpoint 68°F (20°C)
Visibility 10.00 mi
Last update 4 Sep 6:10 am CDT
Extended Forecast for

Williamsport TN

  • Today

    Today: A 30 percent chance of showers and thunderstorms, mainly between 2pm and 5pm. Mostly sunny, with a high near 89. South wind 5 to 10 mph becoming west in the afternoon.

    High: 89 °F

    Mostly Sunny
    then Chance
    T-storms

  • Tonight

    Tonight: Patchy fog between 10pm and 3am. Otherwise, mostly clear, with a low around 66. Calm wind.

    Low: 66 °F

    Patchy Fog

  • Friday

    Friday: A 20 percent chance of showers and thunderstorms after 1pm. Sunny, with a high near 96. Heat index values as high as 102. Southwest wind 5 to 10 mph.

    High: 96 °F

    Sunny then
    Slight Chance
    T-storms

  • Friday Night

    Friday Night: Showers likely and possibly a thunderstorm. Increasing clouds, with a low around 60. South southwest wind around 5 mph becoming calm in the evening. Chance of precipitation is 60%.

    Low: 60 °F

    Showers
    Likely

  • Saturday

    Saturday: A 40 percent chance of showers and thunderstorms before 1pm. Mostly cloudy, with a high near 76. North wind around 5 mph.

    High: 76 °F

    Chance
    T-storms

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 51. North wind around 5 mph becoming calm.

    Low: 51 °F

    Partly Cloudy

  • Sunday

    Sunday: Sunny, with a high near 80. Light north northeast wind increasing to 5 to 10 mph in the morning.

    High: 80 °F

    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 49. North northeast wind around 5 mph becoming calm in the evening.

    Low: 49 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 80. Calm wind becoming northeast around 5 mph in the morning.

    High: 80 °F

    Sunny

Detailed Forecast

Today
A 30 percent chance of showers and thunderstorms, mainly between 2pm and 5pm. Mostly sunny, with a high near 89. South wind 5 to 10 mph becoming west in the afternoon.
Tonight
Patchy fog between 10pm and 3am. Otherwise, mostly clear, with a low around 66. Calm wind.
Friday
A 20 percent chance of showers and thunderstorms after 1pm. Sunny, with a high near 96. Heat index values as high as 102. Southwest wind 5 to 10 mph.
Friday Night
Showers likely and possibly a thunderstorm. Increasing clouds, with a low around 60. South southwest wind around 5 mph becoming calm in the evening. Chance of precipitation is 60%.
Saturday
A 40 percent chance of showers and thunderstorms before 1pm. Mostly cloudy, with a high near 76. North wind around 5 mph.
Saturday Night
Partly cloudy, with a low around 51. North wind around 5 mph becoming calm.
Sunday
Sunny, with a high near 80. Light north northeast wind increasing to 5 to 10 mph in the morning.
Sunday Night
Mostly clear, with a low around 49. North northeast wind around 5 mph becoming calm in the evening.
Monday
Sunny, with a high near 80. Calm wind becoming northeast around 5 mph in the morning.
Monday Night
Mostly clear, with a low around 50.
Tuesday
Sunny, with a high near 85.
Tuesday Night
Mostly clear, with a low around 55.
Wednesday
Sunny, with a high near 87.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Williamsport TN
 35.65°N 87.27°W (Elev. 568 ft)
Last Update:
6:02 am CDT Sep 4, 2025
Forecast Valid:
6am CDT Sep 4, 2025-6pm CDT Sep 10, 2025
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation