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

Areas of Excessive Rainfall and Extreme Heat; Monitoring Tropical Storm Erin

Heavy to excessive rainfall over the southern Appalachians may bring areas of flooding Tuesday. Hot to extremely hot temperatures are in place through Tuesday across much of the western U.S. and northern New England. Tropical Storm Erin is forecast to become a Major Hurricane by this weekend as it moves across the central Atlantic Ocean. Monitor future forecasts for any East Coast impacts. Read More >

Hazardous Weather Conditions

Current conditions at

Monroe County Airport (KMNV)

Lat: 35.55°NLon: 84.38°WElev: 1031ft.

Mostly Cloudy

73°F

23°C

Humidity 100%
Wind Speed W 3 mph
Barometer 30.09 in
Dewpoint 73°F (23°C)
Visibility 10.00 mi
Last update 12 Aug 2:35 am EDT
Extended Forecast for

Loudon TNSimilar City Names

  • Overnight

    Overnight: A chance of rain between 4am and 5am, then a slight chance of showers and thunderstorms after 5am. Mostly cloudy, with a low around 71. Calm wind. Chance of precipitation is 10%.

    Low: 71 °F

    Chance
    Showers

  • Tuesday

    Tuesday: Showers and thunderstorms likely before 3pm, then showers and possibly a thunderstorm between 3pm and 4pm, then showers and thunderstorms likely after 4pm. High near 86. Calm wind becoming south around 5 mph in the afternoon. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.

    High: 86 °F

    Chance
    T-storms then
    T-storms

  • Tuesday Night

    Tuesday Night: A 40 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 71. South wind around 5 mph becoming calm.

    Low: 71 °F

    Chance
    T-storms

  • Wednesday

    Wednesday: A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 2pm. Patchy fog before 9am. Otherwise, mostly cloudy, with a high near 87. Calm wind becoming southwest around 5 mph. Chance of precipitation is 60%.

    High: 87 °F

    Chance
    T-storms and
    Patchy Fog
    then Showers
    Likely

  • Wednesday Night

    Wednesday Night: Showers likely and possibly a thunderstorm before 8pm, then a chance of showers and thunderstorms between 8pm and 2am. Mostly cloudy, with a low around 71. Calm wind. Chance of precipitation is 60%.

    Low: 71 °F

    Showers
    Likely then
    Chance
    T-storms

  • Thursday

    Thursday: A 40 percent chance of showers and thunderstorms after 2pm. Mostly cloudy, with a high near 89. Calm wind.

    High: 89 °F

    Mostly Cloudy
    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.

    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 72.

    Low: 72 °F

    Slight Chance
    T-storms then
    Partly Cloudy

Detailed Forecast

Overnight
A chance of rain between 4am and 5am, then a slight chance of showers and thunderstorms after 5am. Mostly cloudy, with a low around 71. Calm wind. Chance of precipitation is 10%.
Tuesday
Showers and thunderstorms likely before 3pm, then showers and possibly a thunderstorm between 3pm and 4pm, then showers and thunderstorms likely after 4pm. High near 86. Calm wind becoming south around 5 mph in the afternoon. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.
Tuesday Night
A 40 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 71. South wind around 5 mph becoming calm.
Wednesday
A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 2pm. Patchy fog before 9am. Otherwise, mostly cloudy, with a high near 87. Calm wind becoming southwest around 5 mph. Chance of precipitation is 60%.
Wednesday Night
Showers likely and possibly a thunderstorm before 8pm, then a chance of showers and thunderstorms between 8pm and 2am. Mostly cloudy, with a low around 71. Calm wind. Chance of precipitation is 60%.
Thursday
A 40 percent chance of showers and thunderstorms after 2pm. Mostly cloudy, with a high near 89. Calm wind.
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.
Friday Night
A 10 percent chance of showers and thunderstorms before 8pm. Partly cloudy, with a low around 72.
Saturday
Mostly sunny and hot, with a high near 93.
Saturday Night
Mostly clear, with a low around 71.
Sunday
Mostly sunny and hot, with a high near 93.
Sunday Night
Partly cloudy, with a low around 72.
Monday
A 20 percent chance of showers and thunderstorms. Sunny and hot, with a high near 94.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Loudon TNSimilar City Names
 35.74°N 84.35°W (Elev. 899 ft)
Last Update:
1:38 am EDT Aug 12, 2025
Forecast Valid:
2am EDT Aug 12, 2025-6pm EDT Aug 18, 2025
 
Forecast Discussion
 
Get as KML Get as XML

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