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

Heavy Rain in the Southern Appalachians; Fire Weather and Heat in the West; Monitoring Tropical Storm Erin

Heavy to excessive rainfall over the southern Appalachians may bring areas of flooding today. Gusty winds and low relative humidity will bring critical fire weather conditions to parts of the Great Basin and northern Rockies today and Thursday. Hot to extremely hot temperatures are in place through today across parts of the western U.S. Read More >

Hazardous Weather Conditions

Current conditions at

Monroe County Airport (KMNV)

Lat: 35.55°NLon: 84.38°WElev: 1031ft.

A Few Clouds

73°F

23°C

Humidity 100%
Wind Speed SW 5 mph
Barometer 30.05 in
Dewpoint 73°F (23°C)
Visibility 10.00 mi
Last update 13 Aug 12:15 pm EDT
Extended Forecast for

Greenback TN

Flood Watch August 13, 12:43pm until August 13, 08:00pm
Click here for hazard details and duration
Flood Watch
  •  
    Flood Watch August 13, 12:43pm until August 13, 08:00pm

    NOW until 8:00pm Wed

    Flood Watch

  • This Afternoon

    High: 86 °F

    T-storms
    Likely

  • Tonight

    Tonight: A 30 percent chance of showers and thunderstorms, mainly before 2am. Mostly cloudy, with a low around 71. Calm wind.

    Low: 71 °F

    Chance
    T-storms then
    Chance
    Showers

  • Thursday

    Thursday: A slight chance of showers before 7am, then a chance of showers and thunderstorms after 2pm. Partly sunny, with a high near 88. Heat index values as high as 98. Calm wind becoming west around 5 mph. Chance of precipitation is 30%.

    High: 88 °F

    Slight Chance
    Showers then
    Chance
    T-storms

  • Thursday Night

    Thursday Night: A 30 percent chance of showers and thunderstorms before 8pm. Partly cloudy, with a low around 71. Calm wind.

    Low: 71 °F

    Chance
    T-storms then
    Partly Cloudy

  • Friday

    Friday: A 20 percent chance of showers and thunderstorms after 2pm. Mostly sunny and hot, with a high near 92. Calm wind becoming north around 5 mph.

    High: 92 °F

    Mostly Sunny
    then Slight
    Chance
    T-storms

  • Friday Night

    Friday Night: A 10 percent chance of showers and thunderstorms before 8pm. Partly cloudy, with a low around 71. Calm wind.

    Low: 71 °F

    Slight Chance
    T-storms then
    Partly Cloudy

  • Saturday

    Saturday: A 20 percent chance of showers and thunderstorms after 2pm. Mostly sunny and hot, with a high near 92. Calm wind becoming north around 5 mph.

    High: 92 °F

    Mostly Sunny
    then Slight
    Chance
    T-storms

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 71.

    Low: 71 °F

    Mostly Clear

Detailed Forecast

This Afternoon
Showers and thunderstorms likely before 4pm, then showers likely and possibly a thunderstorm after 4pm. Mostly cloudy, with a high near 86. Southwest wind around 5 mph. Chance of precipitation is 70%. New rainfall amounts between a quarter and half of an inch possible.
Tonight
A 30 percent chance of showers and thunderstorms, mainly before 2am. Mostly cloudy, with a low around 71. Calm wind.
Thursday
A slight chance of showers before 7am, then a chance of showers and thunderstorms after 2pm. Partly sunny, with a high near 88. Heat index values as high as 98. Calm wind becoming west around 5 mph. Chance of precipitation is 30%.
Thursday Night
A 30 percent chance of showers and thunderstorms before 8pm. Partly cloudy, with a low around 71. Calm wind.
Friday
A 20 percent chance of showers and thunderstorms after 2pm. Mostly sunny and hot, with a high near 92. Calm wind becoming north around 5 mph.
Friday Night
A 10 percent chance of showers and thunderstorms before 8pm. Partly cloudy, with a low around 71. Calm wind.
Saturday
A 20 percent chance of showers and thunderstorms after 2pm. Mostly sunny and hot, with a high near 92. Calm wind becoming north around 5 mph.
Saturday Night
Mostly clear, with a low around 71.
Sunday
Mostly sunny and hot, with a high near 92.
Sunday Night
Mostly clear, with a low around 71.
Monday
A 20 percent chance of showers and thunderstorms. Sunny and hot, with a high near 93.
Monday Night
A 10 percent chance of showers and thunderstorms. Partly cloudy, with a low around 71.
Tuesday
A 20 percent chance of showers and thunderstorms. Mostly sunny and hot, with a high near 92.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Greenback TN
 35.66°N 84.17°W (Elev. 899 ft)
Last Update:
10:47 am EDT Aug 13, 2025
Forecast Valid:
12pm EDT Aug 13, 2025-6pm EDT Aug 19, 2025
 
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