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

Hazardous Weather Conditions

Current conditions at

Jackson, McKellar-Sipes Regional Airport (KMKL)

Lat: 35.59°NLon: 88.92°WElev: 433ft.

Fair

72°F

22°C

Humidity 97%
Wind Speed Calm
Barometer 30.10 in (1018.6 mb)
Dewpoint 71°F (22°C)
Visibility 10.00 mi
Last update 16 Aug 1:53 am CDT
Extended Forecast for

Mercer TN

Extreme Heat Warning August 16, 02:33am until August 16, 08:00pm
Click here for hazard details and duration
Extreme Heat Warning
  •  
    Extreme Heat Warning August 16, 02:33am until August 16, 08:00pm

    NOW until 8:00pm Sun

    Extreme Heat Warning

  • Overnight

    Low: 75 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny and hot, with a high near 99. Heat index values as high as 111. West southwest wind around 5 mph.

    High: 99 °F

    Hot

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 78. West southwest wind around 5 mph becoming calm.

    Low: 78 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 96. Heat index values as high as 112. Calm wind becoming west northwest around 5 mph in the morning.

    High: 96 °F

    Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 72. North wind around 5 mph becoming calm in the evening.

    Low: 72 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Sunny, with a high near 93. Calm wind becoming north northwest around 5 mph in the afternoon.

    High: 93 °F

    Sunny

  • Tuesday Night

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

    Low: 72 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny and hot, with a high near 97. Calm wind becoming west southwest around 5 mph in the afternoon.

    High: 97 °F

    Hot

Detailed Forecast

Overnight
Mostly clear, with a low around 75. Calm wind becoming south around 5 mph.
Sunday
Sunny and hot, with a high near 99. Heat index values as high as 111. West southwest wind around 5 mph.
Sunday Night
Mostly clear, with a low around 78. West southwest wind around 5 mph becoming calm.
Monday
Sunny, with a high near 96. Heat index values as high as 112. Calm wind becoming west northwest around 5 mph in the morning.
Monday Night
Partly cloudy, with a low around 72. North wind around 5 mph becoming calm in the evening.
Tuesday
Sunny, with a high near 93. Calm wind becoming north northwest around 5 mph in the afternoon.
Tuesday Night
Mostly clear, with a low around 72. Calm wind.
Wednesday
Sunny and hot, with a high near 97. Calm wind becoming west southwest around 5 mph in the afternoon.
Wednesday Night
A 20 percent chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 74.
Thursday
A 30 percent chance of showers and thunderstorms, mainly before 1pm. Mostly sunny, with a high near 91.
Thursday Night
A 30 percent chance of showers and thunderstorms. Partly cloudy, with a low around 70.
Friday
A 30 percent chance of showers and thunderstorms. Mostly sunny, with a high near 90.
Friday Night
Mostly clear, with a low around 67.
Saturday
Sunny, with a high near 89.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Mercer TN
 35.48°N 89.04°W (Elev. 338 ft)
Last Update:
1:26 am CDT Aug 16, 2026
Forecast Valid:
2am CDT Aug 16, 2026-6pm CDT Aug 22, 2026
 
Forecast Discussion
 
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Additional Resources

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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