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Areas of Severe Thunderstorms and Heat

Scattered severe thunderstorms and excessive rainfall are possible today in the Mid Atlantic, posing a risk for damaging winds and isolated flash flooding. Extreme Heat Warnings are in effect today for northeast Texas into southern Oklahoma and Arkansas. Extreme Heat Warnings are also in effect for the Desert Southwest today into Sunday. Read More >

Hazardous Weather Conditions

Current conditions at

Monroe County Airport (KMNV)

Lat: 35.55°NLon: 84.38°WElev: 1031ft.

Fair

81°F

27°C

Humidity 74%
Wind Speed Calm
Barometer 30.06 in
Dewpoint 72°F (22°C)
Visibility 10.00 mi
Heat Index85°F (29°C)
Last update 20 Aug 11:55 am EDT
Extended Forecast for

4 Miles NNW Loudon TN

  • This Afternoon

    This Afternoon: A 20 percent chance of showers and thunderstorms after 2pm. Partly sunny and hot, with a high near 91. Heat index values as high as 102. South wind around 5 mph becoming west.

    High: 91 °F

    Slight Chance
    T-storms

  • Tonight

    Tonight: A 50 percent chance of showers and thunderstorms, mainly before 5am. Mostly cloudy, with a low around 70. Calm wind. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Low: 70 °F

    Chance
    T-storms

  • Friday

    Friday: A slight chance of showers and thunderstorms before 8am, then a slight chance of showers and thunderstorms after 3pm. Partly sunny, with a high near 89. Heat index values as high as 98. Calm wind. Chance of precipitation is 20%.

    High: 89 °F

    Slight Chance
    T-storms

  • Friday Night

    Friday Night: A 10 percent chance of showers and thunderstorms before 7pm. Partly cloudy, with a low around 68. Calm wind.

    Low: 68 °F

    Slight Chance
    T-storms then
    Partly Cloudy

  • Saturday

    Saturday: Sunny and hot, with a high near 90. Calm wind becoming northwest around 5 mph.

    High: 90 °F

    Hot

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 66. Northwest wind around 5 mph becoming calm.

    Low: 66 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 88. Calm wind becoming north around 5 mph in the afternoon.

    High: 88 °F

    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 63.

    Low: 63 °F

    Mostly Clear

  • Monday

    Monday: Mostly sunny, with a high near 87.

    High: 87 °F

    Mostly Sunny

Detailed Forecast

This Afternoon
A 20 percent chance of showers and thunderstorms after 2pm. Partly sunny and hot, with a high near 91. Heat index values as high as 102. South wind around 5 mph becoming west.
Tonight
A 50 percent chance of showers and thunderstorms, mainly before 5am. Mostly cloudy, with a low around 70. Calm wind. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Friday
A slight chance of showers and thunderstorms before 8am, then a slight chance of showers and thunderstorms after 3pm. Partly sunny, with a high near 89. Heat index values as high as 98. Calm wind. Chance of precipitation is 20%.
Friday Night
A 10 percent chance of showers and thunderstorms before 7pm. Partly cloudy, with a low around 68. Calm wind.
Saturday
Sunny and hot, with a high near 90. Calm wind becoming northwest around 5 mph.
Saturday Night
Mostly clear, with a low around 66. Northwest wind around 5 mph becoming calm.
Sunday
Sunny, with a high near 88. Calm wind becoming north around 5 mph in the afternoon.
Sunday Night
Mostly clear, with a low around 63.
Monday
Mostly sunny, with a high near 87.
Monday Night
Partly cloudy, with a low around 64.
Tuesday
Mostly sunny, with a high near 88.
Tuesday Night
Partly cloudy, with a low around 67.
Wednesday
A 30 percent chance of showers and thunderstorms. Mostly sunny and hot, with a high near 91.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
4 Miles NNW Loudon TN
 35.79°N 84.4°W (Elev. 801 ft)
Last Update:
8:16 am EDT Aug 20, 2026
Forecast Valid:
12pm EDT Aug 20, 2026-6pm EDT Aug 26, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

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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