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

79°F

26°C

Humidity 85%
Wind Speed Calm
Barometer 29.94 in (1012.2 mb)
Dewpoint 74°F (23°C)
Visibility 10.00 mi
Heat Index83°F (28°C)
Last update 26 Jul 9:53 pm EDT
Extended Forecast for

4 Miles WNW Harriman TN

  • Tonight

    Tonight: A 30 percent chance of showers and thunderstorms, mainly after 3am.  Mostly cloudy, with a low around 70. Calm wind.

    Low: 70 °F

    Partly Cloudy
    then Chance
    Showers

  • Monday

    Monday: A 30 percent chance of showers before 7am.  Mostly cloudy, then becoming sunny during the afternoon, with a high near 89. Heat index values as high as 95. Calm wind.

    High: 89 °F

    Chance
    Showers then
    Mostly Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 72. Calm wind.

    Low: 72 °F

    Mostly Clear

  • Tuesday

    Tuesday: A chance of showers, then showers and thunderstorms likely after 11am.  Mostly sunny through mid morning, then becoming cloudy and hot, with a high near 90. Heat index values as high as 98. Southwest wind 5 to 10 mph, with gusts as high as 20 mph.  Chance of precipitation is 60%.

    High: 90 °F

    Chance
    Showers then
    T-storms
    Likely

  • Tuesday Night

    Tuesday Night: Showers and thunderstorms likely before 11pm, then a chance of showers between 11pm and 2am.  Partly cloudy, with a low around 69. Northwest wind around 5 mph.  Chance of precipitation is 60%.

    Low: 69 °F

    T-storms
    Likely then
    Chance
    Showers

  • Wednesday

    Wednesday: Mostly sunny, with a high near 84. North wind around 5 mph.

    High: 84 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 63. North wind around 5 mph.

    Low: 63 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 84.

    High: 84 °F

    Sunny

  • Thursday Night

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

    Low: 63 °F

    Mostly Clear

Detailed Forecast

Tonight
A 30 percent chance of showers and thunderstorms, mainly after 3am. Mostly cloudy, with a low around 70. Calm wind.
Monday
A 30 percent chance of showers before 7am. Mostly cloudy, then becoming sunny during the afternoon, with a high near 89. Heat index values as high as 95. Calm wind.
Monday Night
Mostly clear, with a low around 72. Calm wind.
Tuesday
A chance of showers, then showers and thunderstorms likely after 11am. Mostly sunny through mid morning, then becoming cloudy and hot, with a high near 90. Heat index values as high as 98. Southwest wind 5 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 60%.
Tuesday Night
Showers and thunderstorms likely before 11pm, then a chance of showers between 11pm and 2am. Partly cloudy, with a low around 69. Northwest wind around 5 mph. Chance of precipitation is 60%.
Wednesday
Mostly sunny, with a high near 84. North wind around 5 mph.
Wednesday Night
Mostly clear, with a low around 63. North wind around 5 mph.
Thursday
Sunny, with a high near 84.
Thursday Night
Mostly clear, with a low around 63.
Friday
Mostly sunny, with a high near 85.
Friday Night
A 30 percent chance of showers. Mostly cloudy, with a low around 66.
Saturday
A 50 percent chance of showers and thunderstorms. Partly sunny, with a high near 83.
Saturday Night
A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 66.
Sunday
A 50 percent chance of showers and thunderstorms. Partly sunny, with a high near 81.
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ABOUT THIS FORECAST

 
Point Forecast:
4 Miles WNW Harriman TN
 35.96°N 84.64°W (Elev. 1499 ft)
7:06 pm EDT Jul 26, 2026
10pm EDT Jul 26, 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