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

Dangerous Heat and Heavy Rainfall into the Weekend

Hot temperatures and high humidity are forecast to continue across the mid-Mississippi Valley into this weekend. Heat Advisories remain in effect. Heavy to excessive rainfall occurring at times through the weekend could bring areas of flooding to parts of the northern Rockies, upper Midwest, central Great Lakes, and southern New England. Read More >

Hazardous Weather Conditions

Current conditions at

Winchester Municipal Airport (KBGF)

Lat: 35.18°NLon: 86.07°WElev: 979ft.

Fair

84°F

29°C

Humidity 66%
Wind Speed Calm
Barometer 30.07 in
Dewpoint 72°F (22°C)
Visibility 10.00 mi
Heat Index89°F (32°C)
Last update 18 Sep 7:35 pm CDT
Extended Forecast for

5 Miles NE Decherd TN

Heat Advisory September 18, 07:52pm until September 19, 08:00pm
Click here for hazard details and duration
Heat Advisory
  •  
    Heat Advisory September 18, 07:52pm until September 19, 08:00pm

    NOW until 8:00pm Sat

    Heat Advisory

  • Tonight

    Low: 72 °F

    Slight Chance
    Showers then
    Mostly Clear

  • Saturday

    Saturday: A 40 percent chance of showers and thunderstorms, mainly after 3pm. Sunny, with a high near 96. Heat index values as high as 101. Calm wind becoming northwest around 5 mph.

    High: 96 °F

    Sunny then
    Chance
    T-storms

  • Saturday Night

    Saturday Night: A 10 percent chance of showers and thunderstorms before 7pm. Mostly clear, with a low around 71. Calm wind becoming south southeast around 5 mph after midnight.

    Low: 71 °F

    Slight Chance
    T-storms then
    Mostly Clear

  • Sunday

    Sunday: A 20 percent chance of showers and thunderstorms after 1pm. Sunny, with a high near 94. Heat index values as high as 98. South southeast wind around 5 mph becoming calm in the afternoon.

    High: 94 °F

    Sunny then
    Slight Chance
    T-storms

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 70. Calm wind.

    Low: 70 °F

    Partly Cloudy

  • Monday

    Monday: A 50 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 94.

    High: 94 °F

    Sunny then
    Chance
    T-storms

  • Monday Night

    Monday Night: A 50 percent chance of showers and thunderstorms, mainly before 1am. Mostly cloudy, with a low around 69.

    Low: 69 °F

    Chance
    T-storms

  • Tuesday

    Tuesday: A chance of showers, then showers likely and possibly a thunderstorm after 1pm. Mostly sunny, with a high near 89. Chance of precipitation is 70%.

    High: 89 °F

    Chance
    Showers then
    Showers
    Likely

Detailed Forecast

Tonight
A 20 percent chance of showers before 9pm. Mostly clear, with a low around 72. Calm wind.
Saturday
A 40 percent chance of showers and thunderstorms, mainly after 3pm. Sunny, with a high near 96. Heat index values as high as 101. Calm wind becoming northwest around 5 mph.
Saturday Night
A 10 percent chance of showers and thunderstorms before 7pm. Mostly clear, with a low around 71. Calm wind becoming south southeast around 5 mph after midnight.
Sunday
A 20 percent chance of showers and thunderstorms after 1pm. Sunny, with a high near 94. Heat index values as high as 98. South southeast wind around 5 mph becoming calm in the afternoon.
Sunday Night
Partly cloudy, with a low around 70. Calm wind.
Monday
A 50 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 94.
Monday Night
A 50 percent chance of showers and thunderstorms, mainly before 1am. Mostly cloudy, with a low around 69.
Tuesday
A chance of showers, then showers likely and possibly a thunderstorm after 1pm. Mostly sunny, with a high near 89. Chance of precipitation is 70%.
Tuesday Night
A chance of showers and thunderstorms before 1am, then a slight chance of showers. Partly cloudy, with a low around 66. Chance of precipitation is 40%.
Wednesday
A 40 percent chance of showers. Mostly sunny, with a high near 83.
Wednesday Night
Partly cloudy, with a low around 62.
Thursday
Mostly sunny, with a high near 80.
Thursday Night
Partly cloudy, with a low around 60.
Friday
Mostly sunny, with a high near 80.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
5 Miles NE Decherd TN
 35.25°N 86.03°W (Elev. 1083 ft)
Last Update:
7:50 pm CDT Sep 18, 2026
Forecast Valid:
7pm CDT Sep 18, 2026-6pm CDT Sep 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