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

68°F

20°C

Humidity 96%
Wind Speed Calm
Barometer 29.97 in (1014.3 mb)
Dewpoint 67°F (19°C)
Visibility 10.00 mi
Last update 19 Aug 2:53 am CDT
Extended Forecast for

Brownsville TN

Heat Advisory August 19, 11:00am until August 19, 08:00pm
Click here for hazard details and duration
Heat Advisory

  • Overnight

    Overnight: Mostly clear, with a low around 69. Calm wind becoming south southeast around 5 mph.

    Low: 69 °F

    Mostly Clear

  • Wednesday

    Wednesday: A slight chance of showers and thunderstorms between 10am and 11am. Mostly sunny and hot, with a high near 98. Heat index values as high as 109. South southeast wind around 5 mph becoming north in the morning. Chance of precipitation is 20%.

    High: 98 °F

    Slight Chance
    T-storms then
    Sunny

  • Wednesday Night

    Wednesday Night: A 40 percent chance of showers and thunderstorms, mainly after 3am. Partly cloudy, with a low around 74. South southeast wind around 5 mph becoming west southwest in the evening.

    Low: 74 °F

    Slight Chance
    T-storms then
    Chance
    Showers

  • Thursday

    Thursday: A 30 percent chance of showers and thunderstorms, mainly before 2pm. Mostly sunny, with a high near 91. South southwest wind around 5 mph becoming north northwest in the morning.

    High: 91 °F

    Chance
    T-storms

  • Thursday Night

    Thursday Night: A chance of showers and thunderstorms between 7pm and 1am, then a slight chance of showers after 1am. Partly cloudy, with a low around 70. North northeast wind around 5 mph becoming calm in the evening. Chance of precipitation is 40%.

    Low: 70 °F

    Chance
    T-storms then
    Chance
    Showers

  • Friday

    Friday: Sunny, with a high near 90. Calm wind becoming north around 5 mph in the afternoon.

    High: 90 °F

    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 68. North northeast wind around 5 mph becoming calm in the evening.

    Low: 68 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 92. Calm wind becoming north around 5 mph in the afternoon.

    High: 92 °F

    Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 69.

    Low: 69 °F

    Mostly Clear

Detailed Forecast

Overnight
Mostly clear, with a low around 69. Calm wind becoming south southeast around 5 mph.
Wednesday
A slight chance of showers and thunderstorms between 10am and 11am. Mostly sunny and hot, with a high near 98. Heat index values as high as 109. South southeast wind around 5 mph becoming north in the morning. Chance of precipitation is 20%.
Wednesday Night
A 40 percent chance of showers and thunderstorms, mainly after 3am. Partly cloudy, with a low around 74. South southeast wind around 5 mph becoming west southwest in the evening.
Thursday
A 30 percent chance of showers and thunderstorms, mainly before 2pm. Mostly sunny, with a high near 91. South southwest wind around 5 mph becoming north northwest in the morning.
Thursday Night
A chance of showers and thunderstorms between 7pm and 1am, then a slight chance of showers after 1am. Partly cloudy, with a low around 70. North northeast wind around 5 mph becoming calm in the evening. Chance of precipitation is 40%.
Friday
Sunny, with a high near 90. Calm wind becoming north around 5 mph in the afternoon.
Friday Night
Mostly clear, with a low around 68. North northeast wind around 5 mph becoming calm in the evening.
Saturday
Sunny, with a high near 92. Calm wind becoming north around 5 mph in the afternoon.
Saturday Night
Mostly clear, with a low around 69.
Sunday
Mostly sunny, with a high near 91.
Sunday Night
A 20 percent chance of showers. Mostly clear, with a low around 68.
Monday
A 30 percent chance of showers and thunderstorms. Mostly sunny, with a high near 91.
Monday Night
A 20 percent chance of showers. Mostly clear, with a low around 70.
Tuesday
A 20 percent chance of showers and thunderstorms. Sunny, with a high near 94.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Brownsville TN
 35.6°N 89.26°W (Elev. 397 ft)
Last Update:
3:05 am CDT Aug 19, 2026
Forecast Valid:
3am CDT Aug 19, 2026-6pm CDT Aug 25, 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