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

Hazardous Weather Conditions

Current conditions at

Shelbyville Bomar Field & Shelbyville Municipal Airport (KSYI)

Lat: 35.56°NLon: 86.44°WElev: 801ft.

Fair

77°F

25°C

Humidity 89%
Wind Speed Calm
Barometer 30.04 in
Dewpoint 73°F (23°C)
Visibility 10.00 mi
Heat Index78°F (26°C)
Last update 16 Aug 9:35 pm CDT
Extended Forecast for

5 Miles S Unionville TN

Heat Advisory August 16, 10:00pm until August 17, 07:00pm
Click here for hazard details and duration
Heat Advisory
  •  
    Heat Advisory August 16, 10:00pm until August 17, 07:00pm

    NOW until 7:00pm Mon

    Heat Advisory

  • Tonight

    Low: 75 °F

    Mostly Clear

  • Monday

    Monday: A 30 percent chance of showers and thunderstorms, mainly between 3pm and 5pm. Sunny and hot, with a high near 97. Heat index values as high as 107. Light and variable wind becoming west 5 to 10 mph in the morning.

    High: 97 °F

    Sunny then
    Chance
    T-storms

  • Monday Night

    Monday Night: A slight chance of showers and thunderstorms between 7pm and 9pm. Partly cloudy, with a low around 71. Northwest wind around 5 mph becoming calm in the evening. Chance of precipitation is 20%.

    Low: 71 °F

    Slight Chance
    T-storms then
    Mostly Cloudy

  • Tuesday

    Tuesday: Patchy fog before 8am. Otherwise, mostly sunny, with a high near 93. Heat index values as high as 101. Calm wind becoming north northwest around 5 mph in the afternoon.

    High: 93 °F

    Patchy Fog
    then Sunny

  • Tuesday Night

    Tuesday Night: Patchy fog after 5am. Otherwise, mostly clear, with a low around 69. Calm wind.

    Low: 69 °F

    Mostly Clear
    then Patchy
    Fog

  • Wednesday

    Wednesday: Patchy fog before 7am. Otherwise, sunny, with a high near 96. Calm wind becoming west southwest around 5 mph.

    High: 96 °F

    Patchy Fog
    then Sunny

  • Wednesday Night

    Wednesday Night: A 20 percent chance of showers and thunderstorms. Partly cloudy, with a low around 72. South southeast wind around 5 mph becoming calm.

    Low: 72 °F

    Slight Chance
    T-storms

  • Thursday

    Thursday: A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1pm. Mostly sunny, with a high near 92. Calm wind becoming west northwest around 5 mph in the morning. Chance of precipitation is 60%.

    High: 92 °F

    Showers
    Likely

Detailed Forecast

Tonight
Mostly clear, with a low around 75. South wind around 5 mph becoming calm.
Monday
A 30 percent chance of showers and thunderstorms, mainly between 3pm and 5pm. Sunny and hot, with a high near 97. Heat index values as high as 107. Light and variable wind becoming west 5 to 10 mph in the morning.
Monday Night
A slight chance of showers and thunderstorms between 7pm and 9pm. Partly cloudy, with a low around 71. Northwest wind around 5 mph becoming calm in the evening. Chance of precipitation is 20%.
Tuesday
Patchy fog before 8am. Otherwise, mostly sunny, with a high near 93. Heat index values as high as 101. Calm wind becoming north northwest around 5 mph in the afternoon.
Tuesday Night
Patchy fog after 5am. Otherwise, mostly clear, with a low around 69. Calm wind.
Wednesday
Patchy fog before 7am. Otherwise, sunny, with a high near 96. Calm wind becoming west southwest around 5 mph.
Wednesday Night
A 20 percent chance of showers and thunderstorms. Partly cloudy, with a low around 72. South southeast wind around 5 mph becoming calm.
Thursday
A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1pm. Mostly sunny, with a high near 92. Calm wind becoming west northwest around 5 mph in the morning. Chance of precipitation is 60%.
Thursday Night
A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 69. West northwest wind around 5 mph becoming calm.
Friday
A 50 percent chance of showers and thunderstorms. Partly sunny, with a high near 89.
Friday Night
A 20 percent chance of showers and thunderstorms. Partly cloudy, with a low around 66.
Saturday
A 20 percent chance of showers and thunderstorms. Mostly sunny, with a high near 89.
Saturday Night
Partly cloudy, with a low around 66.
Sunday
Sunny, with a high near 90.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
5 Miles S Unionville TN
 35.55°N 86.58°W (Elev. 673 ft)
Last Update:
7:06 pm CDT Aug 16, 2026
Forecast Valid:
10pm CDT Aug 16, 2026-6pm CDT Aug 23, 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