Heat Across the Center of the Nation; Severe Thunderstorms Across the Great Lakes and Ohio Valley

Heat expands across the Desert Southwest, Plains, Mississippi Valley and Midwest into Monday. Fire weather concerns continue for portions of the Intermountain West. Active monsoonal moisture fuels thunderstorms over the Southwest with possible flash flooding. Tropical cyclone Fausto in the Pacific, should weaken as it approaches Hawaii; Dangerous surf, swells and rip currents are expected. Read More >

Hazardous Weather Conditions

Current conditions at

Oak Ridge (KOQT)

Lat: 36.02°NLon: 84.23°WElev: 915ft.

Fair

72°F

22°C

Humidity 97%
Wind Speed Calm
Barometer 29.94 in (1011.7 mb)
Dewpoint 71°F (22°C)
Visibility 9.00 mi
Last update 27 Jul 5:53 am EDT
Extended Forecast for

3 Miles ESE Harriman TN

  • Overnight

    Overnight: A 20 percent chance of showers.  Mostly cloudy, with a low around 71. Calm wind.

    Low: 71 °F

    Slight Chance
    Showers

  • Monday

    Monday: Mostly cloudy, then gradually becoming sunny and hot, with a high near 91. Heat index values as high as 102. Calm wind.

    High: 91 °F

    Hot

  • Monday Night

    Monday Night: Mostly clear, with a low around 73. Calm wind.

    Low: 73 °F

    Mostly Clear

  • Tuesday

    Tuesday: Showers and thunderstorms likely, mainly between 3pm and 4pm.  Mostly sunny and hot, with a high near 93. Heat index values as high as 107. Light and variable wind becoming west 5 to 10 mph in the afternoon. Winds could gust as high as 20 mph.  Chance of precipitation is 60%.

    High: 93 °F

    Slight Chance
    Showers then
    T-storms
    Likely

  • Tuesday Night

    Tuesday Night: A chance of showers and thunderstorms before 11pm, then a chance of showers between 11pm and 2am.  Partly cloudy, with a low around 70. Northwest wind around 5 mph becoming calm  in the evening.  Chance of precipitation is 30%.

    Low: 70 °F

    Chance
    Showers

  • Wednesday

    Wednesday: Mostly sunny, with a high near 88. Calm wind becoming north around 5 mph in the afternoon.

    High: 88 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 64. Northwest wind around 5 mph becoming calm.

    Low: 64 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 87.

    High: 87 °F

    Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 64.

    Low: 64 °F

    Mostly Clear

Detailed Forecast

Overnight
A 20 percent chance of showers. Mostly cloudy, with a low around 71. Calm wind.
Monday
Mostly cloudy, then gradually becoming sunny and hot, with a high near 91. Heat index values as high as 102. Calm wind.
Monday Night
Mostly clear, with a low around 73. Calm wind.
Tuesday
Showers and thunderstorms likely, mainly between 3pm and 4pm. Mostly sunny and hot, with a high near 93. Heat index values as high as 107. Light and variable wind becoming west 5 to 10 mph in the afternoon. Winds could gust as high as 20 mph. Chance of precipitation is 60%.
Tuesday Night
A chance of showers and thunderstorms before 11pm, then a chance of showers between 11pm and 2am. Partly cloudy, with a low around 70. Northwest wind around 5 mph becoming calm in the evening. Chance of precipitation is 30%.
Wednesday
Mostly sunny, with a high near 88. Calm wind becoming north around 5 mph in the afternoon.
Wednesday Night
Mostly clear, with a low around 64. Northwest wind around 5 mph becoming calm.
Thursday
Sunny, with a high near 87.
Thursday Night
Mostly clear, with a low around 64.
Friday
Mostly sunny, with a high near 88.
Friday Night
A 20 percent chance of showers. Mostly cloudy, with a low around 68.
Saturday
A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a high near 85.
Saturday Night
A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 68.
Sunday
Showers and thunderstorms likely. Mostly cloudy, with a high near 84. Chance of precipitation is 60%.
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ABOUT THIS FORECAST

 
Point Forecast:
3 Miles ESE Harriman TN
 35.93°N 84.5°W (Elev. 810 ft)
2:26 am EDT Jul 27, 2026
5am EDT Jul 27, 2026-6pm EDT Aug 2, 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