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

Areas of Dangerous Heat and Heavy Rain with Possible Flooding into this Weekend

Hot temperatures and high humidity are forecast to continue across the mid-Mississippi Valley into this weekend with heat advisories in effect. Heavy to excessive rainfall occurring at times through Sunday could bring areas of flooding to parts of the upper Midwest, central Great Lakes, southern New England and Virginia/North Carolina tidewater region. Read More >

Hazardous Weather Conditions

Current conditions at

Winchester Municipal Airport (KBGF)

Lat: 35.18°NLon: 86.07°WElev: 979ft.

Fair

73°F

23°C

Humidity 94%
Wind Speed Calm
Barometer 30.19 in
Dewpoint 72°F (22°C)
Visibility 10.00 mi
Last update 18 Sep 2:15 am CDT
Extended Forecast for

Winchester TN

Heat Advisory September 18, 02:31am until September 19, 08:00pm
Click here for hazard details and duration
Heat Advisory
  •  
    Heat Advisory September 18, 02:31am until September 19, 08:00pm

    NOW until 8:00pm Sat

    Heat Advisory

  • Overnight

    Low: 71 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 96. Heat index values as high as 100. Calm wind becoming north around 5 mph.

    High: 96 °F

    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 70. Calm wind.

    Low: 70 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 95. Heat index values as high as 100. Calm wind becoming north around 5 mph.

    High: 95 °F

    Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 69. Calm wind.

    Low: 69 °F

    Partly Cloudy

  • Sunday

    Sunday: A slight chance of showers between 1pm and 4pm, then a slight chance of showers and thunderstorms after 4pm. Mostly sunny, with a high near 94. Chance of precipitation is 20%.

    High: 94 °F

    Sunny then
    Slight Chance
    T-storms

  • Sunday Night

    Sunday Night: A slight chance of thunderstorms before 7pm. Partly cloudy, with a low around 68. Chance of precipitation is 10%.

    Low: 68 °F

    Slight Chance
    T-storms then
    Partly Cloudy

  • Monday

    Monday: A 30 percent chance of showers and thunderstorms after 1pm. Sunny, with a high near 93.

    High: 93 °F

    Sunny then
    Chance
    T-storms

Detailed Forecast

Overnight
Mostly clear, with a low around 71. Calm wind.
Friday
Sunny, with a high near 96. Heat index values as high as 100. Calm wind becoming north around 5 mph.
Friday Night
Mostly clear, with a low around 70. Calm wind.
Saturday
Sunny, with a high near 95. Heat index values as high as 100. Calm wind becoming north around 5 mph.
Saturday Night
Partly cloudy, with a low around 69. Calm wind.
Sunday
A slight chance of showers between 1pm and 4pm, then a slight chance of showers and thunderstorms after 4pm. Mostly sunny, with a high near 94. Chance of precipitation is 20%.
Sunday Night
A slight chance of thunderstorms before 7pm. Partly cloudy, with a low around 68. Chance of precipitation is 10%.
Monday
A 30 percent chance of showers and thunderstorms after 1pm. Sunny, with a high near 93.
Monday Night
A chance of showers and thunderstorms before 1am, then a slight chance of showers. Partly cloudy, with a low around 67. Chance of precipitation is 50%.
Tuesday
Showers likely and possibly a thunderstorm after 1pm. Mostly sunny, with a high near 90. Chance of precipitation is 60%.
Tuesday Night
A 20 percent chance of showers and thunderstorms. Partly cloudy, with a low around 64.
Wednesday
A 20 percent chance of showers and thunderstorms. Mostly sunny, with a high near 84.
Wednesday Night
Partly cloudy, with a low around 59.
Thursday
Mostly sunny, with a high near 81.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Winchester TN
 35.21°N 86.11°W (Elev. 971 ft)
Last Update:
1:50 am CDT Sep 18, 2026
Forecast Valid:
2am CDT Sep 18, 2026-6pm CDT Sep 24, 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