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

Dangerous Heat over the South-Central and Southwest U.S. Through Next Week

Dangerous heat persists across the Desert Southwest through this weekend and across the Southern Plains and Lower Mississippi Valley through at least the middle of next week. Numerous daily record high temperatures are expected through at least Tuesday for much of Texas and Oklahoma as well as portions of Louisiana, New Mexico, and Arizona. Read More >

Hazardous Weather Conditions

Current conditions at

Greeneville-Greene County Municipal Airport (KGCY)

Lat: 36.2°NLon: 82.81°WElev: 1608ft.

66°F

19°C

Humidity 94%
Wind Speed Calm
Barometer 30.00 in
Dewpoint 64°F (18°C)
Visibility 10.00 mi
Last update 23 Aug 3:35 am EDT
Extended Forecast for

5 Miles WSW Rogersville TN

  • Overnight

    Overnight: Patchy fog. Otherwise, mostly clear, with a low around 63. Calm wind.

    Low: 63 °F

    Patchy Fog

  • Sunday

    Sunday: Patchy fog before 9am. Otherwise, sunny, with a high near 82. Calm wind becoming west around 5 mph in the afternoon.

    High: 82 °F

    Patchy Fog
    then Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 57. Calm wind.

    Low: 57 °F

    Mostly Clear

  • Monday

    Monday: Mostly sunny, with a high near 82. Calm wind.

    High: 82 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 57. Calm wind.

    Low: 57 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Sunny, with a high near 85. Northeast wind around 5 mph becoming calm.

    High: 85 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 61. Calm wind.

    Low: 61 °F

    Mostly Clear

  • Wednesday

    Wednesday: Mostly sunny, with a high near 87.

    High: 87 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: A 20 percent chance of showers and thunderstorms. Partly cloudy, with a low around 65.

    Low: 65 °F

    Slight Chance
    T-storms

Detailed Forecast

Overnight
Patchy fog. Otherwise, mostly clear, with a low around 63. Calm wind.
Sunday
Patchy fog before 9am. Otherwise, sunny, with a high near 82. Calm wind becoming west around 5 mph in the afternoon.
Sunday Night
Mostly clear, with a low around 57. Calm wind.
Monday
Mostly sunny, with a high near 82. Calm wind.
Monday Night
Partly cloudy, with a low around 57. Calm wind.
Tuesday
Sunny, with a high near 85. Northeast wind around 5 mph becoming calm.
Tuesday Night
Mostly clear, with a low around 61. Calm wind.
Wednesday
Mostly sunny, with a high near 87.
Wednesday Night
A 20 percent chance of showers and thunderstorms. Partly cloudy, with a low around 65.
Thursday
A chance of showers, with thunderstorms also possible after 2pm. Partly sunny, with a high near 85. Chance of precipitation is 50%.
Thursday Night
A 30 percent chance of showers and thunderstorms. Partly cloudy, with a low around 65.
Friday
A 20 percent chance of showers and thunderstorms. Mostly sunny, with a high near 86.
Friday Night
A 10 percent chance of showers and thunderstorms. Partly cloudy, with a low around 64.
Saturday
A 20 percent chance of showers and thunderstorms. Mostly sunny, with a high near 87.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
5 Miles WSW Rogersville TN
 36.37°N 83.09°W (Elev. 1434 ft)
Last Update:
2:26 am EDT Aug 23, 2026
Forecast Valid:
3am EDT Aug 23, 2026-6pm EDT Aug 29, 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