Lala Approaching Hawaii; Flash Flooding Risks; Excessive Heat

Lala, may become a hurricane, is expected to impact Hawaii this weekend. Heavy rainfall, strong winds, dangerous surf and localized flooding are expected. Heavy rainfall and flash flooding concerns from the mid-Mississippi Valley, Ohio Valley into the central Appalachians continues, with the threat shifting toward the mid-Atlantic later this weekend. Record heat continues for areas of the South. Read More >

Hazardous Weather Conditions

Current conditions at

Greeneville-Greene County Municipal Airport (KGCY)

Lat: 36.2°NLon: 82.81°WElev: 1608ft.

73°F

23°C

Humidity 100%
Wind Speed Calm
Barometer 30.19 in
Dewpoint 73°F (23°C)
Visibility 9.00 mi
Last update 15 Aug 11:55 pm EDT
Extended Forecast for

5 Miles SSE Rogersville TN

  • Overnight

    Overnight: Patchy fog before 1am, then patchy fog after 2am.  Otherwise, mostly clear, with a low around 71. Calm wind.

    Low: 71 °F

    Patchy Fog

  • Sunday

    Sunday: Areas of fog before 10am.  Otherwise, mostly sunny and hot, with a high near 90. Heat index values as high as 99. Calm wind becoming west around 5 mph in the afternoon.

    High: 90 °F

    Areas Fog
    then Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 72. Southwest wind around 5 mph becoming calm.

    Low: 72 °F

    Mostly Clear

  • Monday

    Monday: Showers likely and possibly a thunderstorm after 2pm.  Sunny and hot, with a high near 90. Heat index values as high as 97. Calm wind becoming west around 5 mph in the afternoon.  Chance of precipitation is 60%.

    High: 90 °F

    Sunny then
    Showers
    Likely

  • Monday Night

    Monday Night: Showers likely and possibly a thunderstorm before 8pm, then a chance of showers and thunderstorms between 8pm and 2am.  Partly cloudy, with a low around 70. West wind around 5 mph becoming calm.  Chance of precipitation is 60%.

    Low: 70 °F

    Showers
    Likely

  • Tuesday

    Tuesday: Mostly sunny, with a high near 87. Calm wind.

    High: 87 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 65. Calm wind.

    Low: 65 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 88.

    High: 88 °F

    Sunny

  • Wednesday Night

    Wednesday Night: A 30 percent chance of showers and thunderstorms after 2am.  Partly cloudy, with a low around 68.

    Low: 68 °F

    Partly Cloudy
    then Chance
    Showers

Detailed Forecast

Overnight
Patchy fog before 1am, then patchy fog after 2am. Otherwise, mostly clear, with a low around 71. Calm wind.
Sunday
Areas of fog before 10am. Otherwise, mostly sunny and hot, with a high near 90. Heat index values as high as 99. Calm wind becoming west around 5 mph in the afternoon.
Sunday Night
Mostly clear, with a low around 72. Southwest wind around 5 mph becoming calm.
Monday
Showers likely and possibly a thunderstorm after 2pm. Sunny and hot, with a high near 90. Heat index values as high as 97. Calm wind becoming west around 5 mph in the afternoon. Chance of precipitation is 60%.
Monday Night
Showers likely and possibly a thunderstorm before 8pm, then a chance of showers and thunderstorms between 8pm and 2am. Partly cloudy, with a low around 70. West wind around 5 mph becoming calm. Chance of precipitation is 60%.
Tuesday
Mostly sunny, with a high near 87. Calm wind.
Tuesday Night
Mostly clear, with a low around 65. Calm wind.
Wednesday
Sunny, with a high near 88.
Wednesday Night
A 30 percent chance of showers and thunderstorms after 2am. Partly cloudy, with a low around 68.
Thursday
A chance of showers and thunderstorms before 8am, then a chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 87. Chance of precipitation is 40%.
Thursday Night
A 40 percent chance of showers and thunderstorms. Partly cloudy, with a low around 66.
Friday
A 40 percent chance of showers and thunderstorms. Partly sunny, with a high near 84.
Friday Night
A 40 percent chance of showers and thunderstorms. Partly cloudy, with a low around 64.
Saturday
A 30 percent chance of showers and thunderstorms. Partly sunny, with a high near 84.
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ABOUT THIS FORECAST

 
Point Forecast:
5 Miles SSE Rogersville TN
 36.34°N 82.95°W (Elev. 1332 ft)
11:36 pm EDT Aug 15, 2026
12am EDT Aug 16, 2026-6pm EDT Aug 22, 2026
 
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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