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

72°F

22°C

Humidity 94%
Wind Speed Calm
Barometer 30.27 in
Dewpoint 70°F (21°C)
Visibility 10.00 mi
Last update 17 Sep 2:55 am CDT
Extended Forecast for

3 Miles N Unionville TN

Heat Advisory September 17, 03:09am until September 19, 08:00pm
Click here for hazard details and duration
Heat Advisory
  •  
    Heat Advisory September 17, 03:09am until September 19, 08:00pm

    NOW until 8:00pm Sat

    Heat Advisory

  • Overnight

    Low: 71 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny and hot, with a high near 99. Heat index values as high as 107. Calm wind becoming north around 5 mph in the afternoon.

    High: 99 °F

    Hot

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 72. Calm wind.

    Low: 72 °F

    Mostly Clear

  • Friday

    Friday: Sunny and hot, with a high near 99. Heat index values as high as 107. Calm wind becoming north around 5 mph in the afternoon.

    High: 99 °F

    Hot

  • Friday Night

    Friday Night: Mostly clear, with a low around 71. North northeast wind around 5 mph becoming calm.

    Low: 71 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny and hot, with a high near 99. Calm wind becoming west around 5 mph.

    High: 99 °F

    Hot

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 71. Calm wind becoming south around 5 mph after midnight.

    Low: 71 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny and hot, with a high near 98. South wind around 5 mph becoming west in the afternoon.

    High: 98 °F

    Hot

Detailed Forecast

Overnight
Mostly clear, with a low around 71. Calm wind.
Thursday
Sunny and hot, with a high near 99. Heat index values as high as 107. Calm wind becoming north around 5 mph in the afternoon.
Thursday Night
Mostly clear, with a low around 72. Calm wind.
Friday
Sunny and hot, with a high near 99. Heat index values as high as 107. Calm wind becoming north around 5 mph in the afternoon.
Friday Night
Mostly clear, with a low around 71. North northeast wind around 5 mph becoming calm.
Saturday
Sunny and hot, with a high near 99. Calm wind becoming west around 5 mph.
Saturday Night
Mostly clear, with a low around 71. Calm wind becoming south around 5 mph after midnight.
Sunday
Sunny and hot, with a high near 98. South wind around 5 mph becoming west in the afternoon.
Sunday Night
Mostly clear, with a low around 70. South wind around 5 mph.
Monday
A 20 percent chance of showers and thunderstorms after 1pm. Mostly sunny and hot, with a high near 97.
Monday Night
A 40 percent chance of showers and thunderstorms. Partly cloudy, with a low around 68.
Tuesday
A 50 percent chance of showers and thunderstorms. Mostly sunny, with a high near 93.
Tuesday Night
A 20 percent chance of showers. Partly cloudy, with a low around 66.
Wednesday
A 30 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:
3 Miles N Unionville TN
 35.66°N 86.6°W (Elev. 751 ft)
Last Update:
1:31 am CDT Sep 17, 2026
Forecast Valid:
3am CDT Sep 17, 2026-6pm CDT Sep 23, 2026
 
Forecast Discussion
 
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Additional Resources

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Chance of Precipitation