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

Heat Continues Across the Southern Plains and Gulf Coast; Heavy Rainfall from the Tennessee Valley to Southeast on Friday

Hazardous heat will continue across the Southern Plains, Gulf Coast and Desert Southwest through the weekend. Additional heat will build into the Great Basin and Northern Plains this weekend. A stalled front is expected to bring periods of heavy to excessive rainfall and flooding from the Tennessee Valley to the Southeast U.S on Friday. Read More >

Hazardous Weather Conditions

Current conditions at

Oak Ridge (KOQT)

Lat: 36.02°NLon: 84.23°WElev: 915ft.

Overcast

72°F

22°C

Humidity 91%
Wind Speed Calm
Barometer 30.10 in (1017.5 mb)
Dewpoint 69°F (21°C)
Visibility 10.00 mi
Last update 24 Jul 4:53 am EDT
Extended Forecast for

Karns TN

  • Overnight

    Overnight: A 20 percent chance of showers. Mostly cloudy, with a low around 68. Calm wind.

    Low: 68 °F

    Slight Chance
    Showers

  • Friday

    Friday: A chance of showers before 2pm, then a slight chance of showers and thunderstorms after 5pm. Mostly cloudy, with a high near 86. Calm wind becoming west around 5 mph. Chance of precipitation is 30%.

    High: 86 °F

    Chance
    Showers then
    Slight Chance
    T-storms

  • Friday Night

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

    Low: 68 °F

    Slight Chance
    T-storms then
    Partly Cloudy

  • Saturday

    Saturday: A slight chance of showers, then a chance of showers and thunderstorms after 4pm. Partly sunny, with a high near 85. Calm wind. Chance of precipitation is 30%.

    High: 85 °F

    Slight Chance
    Showers then
    Chance
    T-storms

  • Saturday Night

    Saturday Night: A 40 percent chance of showers and thunderstorms after 8pm. Partly cloudy, with a low around 70. Calm wind.

    Low: 70 °F

    Chance
    T-storms then
    Chance
    Showers

  • Sunday

    Sunday: Mostly sunny, with a high near 88. Calm wind.

    High: 88 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 70. Calm wind.

    Low: 70 °F

    Partly Cloudy

  • Monday

    Monday: Mostly sunny and hot, with a high near 90.

    High: 90 °F

    Hot

  • Monday Night

    Monday Night: A 20 percent chance of showers and thunderstorms before 2am. Partly cloudy, with a low around 73.

    Low: 73 °F

    Slight Chance
    T-storms

Detailed Forecast

Overnight
A 20 percent chance of showers. Mostly cloudy, with a low around 68. Calm wind.
Friday
A chance of showers before 2pm, then a slight chance of showers and thunderstorms after 5pm. Mostly cloudy, with a high near 86. Calm wind becoming west around 5 mph. Chance of precipitation is 30%.
Friday Night
A 10 percent chance of showers and thunderstorms before 7pm. Increasing clouds, with a low around 68. Calm wind.
Saturday
A slight chance of showers, then a chance of showers and thunderstorms after 4pm. Partly sunny, with a high near 85. Calm wind. Chance of precipitation is 30%.
Saturday Night
A 40 percent chance of showers and thunderstorms after 8pm. Partly cloudy, with a low around 70. Calm wind.
Sunday
Mostly sunny, with a high near 88. Calm wind.
Sunday Night
Partly cloudy, with a low around 70. Calm wind.
Monday
Mostly sunny and hot, with a high near 90.
Monday Night
A 20 percent chance of showers and thunderstorms before 2am. Partly cloudy, with a low around 73.
Tuesday
A 20 percent chance of showers and thunderstorms after 2pm. Mostly sunny and hot, with a high near 92.
Tuesday Night
A 40 percent chance of showers and thunderstorms. Partly cloudy, with a low around 73.
Wednesday
A 20 percent chance of showers and thunderstorms. Mostly sunny, with a high near 89.
Wednesday Night
A 20 percent chance of showers and thunderstorms. Partly cloudy, with a low around 70.
Thursday
Mostly sunny, with a high near 88.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Karns TN
 35.97°N 84.13°W (Elev. 922 ft)
Last Update:
2:26 am EDT Jul 24, 2026
Forecast Valid:
5am EDT Jul 24, 2026-6pm EDT Jul 30, 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