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

McMinnville Warren County Memorial Airport (KRNC)

Lat: 35.7°NLon: 85.84°WElev: 1033ft.

66°F

19°C

Humidity 100%
Wind Speed Calm
Barometer 30.01 in
Dewpoint 66°F (19°C)
Visibility 9.00 mi
Last update 19 Aug 12:55 am CDT
Extended Forecast for

Summitville TN

  • Overnight

    Overnight: Mostly clear, with a low around 65. Calm wind.

    Low: 65 °F

    Mostly Clear

  • Wednesday

    Wednesday: Increasing clouds, with a high near 91. Calm wind.

    High: 91 °F

    Increasing
    Clouds

  • Wednesday Night

    Wednesday Night: A 40 percent chance of showers and thunderstorms after 2am. Partly cloudy, with a low around 71. Calm wind becoming west southwest around 5 mph.

    Low: 71 °F

    Partly Cloudy
    then Chance
    Showers

  • Thursday

    Thursday: Showers and thunderstorms likely, mainly before 2pm. Mostly sunny, with a high near 89. Heat index values as high as 97. West southwest wind around 5 mph becoming east in the morning. Chance of precipitation is 60%.

    High: 89 °F

    Showers
    Likely then
    Chance
    Showers

  • Thursday Night

    Thursday Night: A chance of showers and thunderstorms before 7pm, then showers likely and possibly a thunderstorm between 7pm and 8pm, then a chance of showers and thunderstorms after 8pm. Patchy fog after 9pm. Otherwise, partly cloudy, with a low around 69. Calm wind. Chance of precipitation is 60%.

    Low: 69 °F

    Showers
    Likely and
    Patchy Fog

  • Friday

    Friday: A slight chance of showers, with thunderstorms also possible after 1pm. Areas of fog before 9am. Otherwise, mostly sunny, with a high near 87. Calm wind becoming west southwest around 5 mph in the afternoon. Chance of precipitation is 20%.

    High: 87 °F

    Slight Chance
    T-storms and
    Areas Fog

  • Friday Night

    Friday Night: Patchy fog after 10pm. Otherwise, mostly clear, with a low around 66. Calm wind.

    Low: 66 °F

    Patchy Fog

  • Saturday

    Saturday: Areas of fog before 8am. Otherwise, sunny, with a high near 88. Calm wind becoming northwest around 5 mph in the afternoon.

    High: 88 °F

    Areas Fog
    then Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 66. Calm wind.

    Low: 66 °F

    Mostly Clear

Detailed Forecast

Overnight
Mostly clear, with a low around 65. Calm wind.
Wednesday
Increasing clouds, with a high near 91. Calm wind.
Wednesday Night
A 40 percent chance of showers and thunderstorms after 2am. Partly cloudy, with a low around 71. Calm wind becoming west southwest around 5 mph.
Thursday
Showers and thunderstorms likely, mainly before 2pm. Mostly sunny, with a high near 89. Heat index values as high as 97. West southwest wind around 5 mph becoming east in the morning. Chance of precipitation is 60%.
Thursday Night
A chance of showers and thunderstorms before 7pm, then showers likely and possibly a thunderstorm between 7pm and 8pm, then a chance of showers and thunderstorms after 8pm. Patchy fog after 9pm. Otherwise, partly cloudy, with a low around 69. Calm wind. Chance of precipitation is 60%.
Friday
A slight chance of showers, with thunderstorms also possible after 1pm. Areas of fog before 9am. Otherwise, mostly sunny, with a high near 87. Calm wind becoming west southwest around 5 mph in the afternoon. Chance of precipitation is 20%.
Friday Night
Patchy fog after 10pm. Otherwise, mostly clear, with a low around 66. Calm wind.
Saturday
Areas of fog before 8am. Otherwise, sunny, with a high near 88. Calm wind becoming northwest around 5 mph in the afternoon.
Saturday Night
Mostly clear, with a low around 66. Calm wind.
Sunday
Sunny, with a high near 87.
Sunday Night
Partly cloudy, with a low around 63.
Monday
Mostly sunny, with a high near 87.
Monday Night
Partly cloudy, with a low around 66.
Tuesday
A 20 percent chance of showers and thunderstorms. Mostly sunny, with a high near 90.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Summitville TN
 35.54°N 86°W (Elev. 1099 ft)
Last Update:
10:46 pm CDT Aug 18, 2026
Forecast Valid:
1am CDT Aug 19, 2026-6pm CDT Aug 25, 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