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

Hazardous Weather Conditions

Current conditions at

Memphis International Airport (KMEM)

Lat: 35.06°NLon: 89.99°WElev: 253ft.

Fair

85°F

29°C

Humidity 59%
Wind Speed S 8 mph
Barometer 30.08 in (1018.1 mb)
Dewpoint 69°F (21°C)
Visibility 10.00 mi
Heat Index89°F (32°C)
Last update 14 Aug 10:54 pm CDT
Extended Forecast for

Williston TN

Extreme Heat Warning August 14, 11:18pm until August 16, 08:00pm
Click here for hazard details and duration
Extreme Heat Warning
  •  
    Extreme Heat Warning August 14, 11:18pm until August 16, 08:00pm

    NOW until 8:00pm Sun

    Extreme Heat Warning

  • Tonight

    Low: 76 °F

    Clear

  • Saturday

    Saturday: Sunny and hot, with a high near 99. Heat index values as high as 106. West southwest wind around 5 mph.

    High: 99 °F

    Hot

  • Saturday Night

    Saturday Night: Clear, with a low around 77. Calm wind.

    Low: 77 °F

    Clear

  • Sunday

    Sunday: Sunny and hot, with a high near 101. Heat index values as high as 109. Calm wind becoming west around 5 mph in the morning.

    High: 101 °F

    Hot

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 79. Calm wind becoming southwest around 5 mph.

    Low: 79 °F

    Mostly Clear

  • Monday

    Monday: A 20 percent chance of showers and thunderstorms after 1pm. Sunny and hot, with a high near 98. West southwest wind around 5 mph becoming northwest in the afternoon.

    High: 98 °F

    Sunny then
    Slight Chance
    T-storms

  • Monday Night

    Monday Night: Mostly clear, with a low around 74. Calm wind.

    Low: 74 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 96. Calm wind becoming west around 5 mph in the afternoon.

    High: 96 °F

    Sunny

Detailed Forecast

Tonight
Clear, with a low around 76. Calm wind.
Saturday
Sunny and hot, with a high near 99. Heat index values as high as 106. West southwest wind around 5 mph.
Saturday Night
Clear, with a low around 77. Calm wind.
Sunday
Sunny and hot, with a high near 101. Heat index values as high as 109. Calm wind becoming west around 5 mph in the morning.
Sunday Night
Mostly clear, with a low around 79. Calm wind becoming southwest around 5 mph.
Monday
A 20 percent chance of showers and thunderstorms after 1pm. Sunny and hot, with a high near 98. West southwest wind around 5 mph becoming northwest in the afternoon.
Monday Night
Mostly clear, with a low around 74. Calm wind.
Tuesday
Sunny, with a high near 96. Calm wind becoming west around 5 mph in the afternoon.
Tuesday Night
Mostly clear, with a low around 75.
Wednesday
Sunny and hot, with a high near 98.
Wednesday Night
Mostly clear, with a low around 76.
Thursday
A 20 percent chance of showers and thunderstorms. Mostly sunny, with a high near 96.
Thursday Night
Partly cloudy, with a low around 72.
Friday
A 20 percent chance of showers and thunderstorms. Mostly sunny, with a high near 93.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Williston TN
 35.15°N 89.36°W (Elev. 499 ft)
Last Update:
6:15 pm CDT Aug 14, 2026
Forecast Valid:
11pm CDT Aug 14, 2026-6pm CDT Aug 21, 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