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

Areas of Severe Thunderstorms and Excessive Rainfall; Heat Wave Builds in the Intermountain West and Plains

A slow moving front will bring rounds of strong to severe thunderstorms and heavy rainfall to the central Plains eastward to the east-central U.S.. The first widespread significant heat wave of summer for the Intermountain West and Plains is expected to develop today and expand through next week. Dangerous heat will continue to impact portions of the Southwest and Southeast. Read More >

Hazardous Weather Conditions

Current conditions at

Chattanooga, Lovell Field (KCHA)

Lat: 35.03°NLon: 85.2°WElev: 679ft.

Mostly Cloudy

85°F

29°C

Humidity 68%
Wind Speed Vrbl 7 mph
Barometer 30.03 in (1016.0 mb)
Dewpoint 73°F (23°C)
Visibility 10.00 mi
Heat Index92°F (33°C)
Last update 10 Jul 5:53 pm EDT
Extended Forecast for

Harrison TN

Flood Watch July 10, 06:20pm until July 12, 08:00pm
Click here for hazard details and duration
Flood Watch
  •  
    Flood Watch July 10, 06:20pm until July 12, 08:00pm

    NOW until 8:00pm Sun

    Flood Watch

  • Tonight

    Low: 74 °F

    Chance
    T-storms then
    Showers

  • Saturday

    Saturday: Showers and thunderstorms, mainly before 4pm. High near 87. Heat index values as high as 96. South wind around 5 mph becoming east in the afternoon. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.

    High: 87 °F

    Showers
    Likely then
    T-storms

  • Saturday Night

    Saturday Night: Showers and thunderstorms likely before 5am, then a chance of showers. Partly cloudy, with a low around 72. Southwest wind around 5 mph becoming calm. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    Low: 72 °F

    T-storms
    Likely then
    Chance
    Showers

  • Sunday

    Sunday: Showers likely, then showers and possibly a thunderstorm after 8am. High near 86. Calm wind becoming west around 5 mph. Chance of precipitation is 90%.

    High: 86 °F

    Showers
    Likely then
    T-storms

  • Sunday Night

    Sunday Night: Showers and possibly a thunderstorm before 5am, then showers likely. Low around 72. Calm wind. Chance of precipitation is 80%.

    Low: 72 °F

    Showers

  • Monday

    Monday: Showers likely, then showers and possibly a thunderstorm after 11am. High near 83. Calm wind becoming southeast around 5 mph. Chance of precipitation is 90%.

    High: 83 °F

    Showers
    Likely then
    T-storms

  • Monday Night

    Monday Night: Showers and possibly a thunderstorm before 2am, then a slight chance of showers. Low around 71. East wind around 5 mph becoming calm. Chance of precipitation is 80%.

    Low: 71 °F

    T-storms then
    Showers
    Likely

  • Tuesday

    Tuesday: A slight chance of showers, then a chance of showers and thunderstorms after 8am. Partly sunny, with a high near 84. Chance of precipitation is 50%.

    High: 84 °F

    Chance
    T-storms

Detailed Forecast

Tonight
A chance of showers and thunderstorms, then showers and possibly a thunderstorm after 2am. Low around 74. Southwest wind 5 to 10 mph becoming light west in the evening. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Saturday
Showers and thunderstorms, mainly before 4pm. High near 87. Heat index values as high as 96. South wind around 5 mph becoming east in the afternoon. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.
Saturday Night
Showers and thunderstorms likely before 5am, then a chance of showers. Partly cloudy, with a low around 72. Southwest wind around 5 mph becoming calm. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Sunday
Showers likely, then showers and possibly a thunderstorm after 8am. High near 86. Calm wind becoming west around 5 mph. Chance of precipitation is 90%.
Sunday Night
Showers and possibly a thunderstorm before 5am, then showers likely. Low around 72. Calm wind. Chance of precipitation is 80%.
Monday
Showers likely, then showers and possibly a thunderstorm after 11am. High near 83. Calm wind becoming southeast around 5 mph. Chance of precipitation is 90%.
Monday Night
Showers and possibly a thunderstorm before 2am, then a slight chance of showers. Low around 71. East wind around 5 mph becoming calm. Chance of precipitation is 80%.
Tuesday
A slight chance of showers, then a chance of showers and thunderstorms after 8am. Partly sunny, with a high near 84. Chance of precipitation is 50%.
Tuesday Night
A 20 percent chance of showers and thunderstorms before 2am. Partly cloudy, with a low around 71.
Wednesday
A 20 percent chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 88.
Wednesday Night
A 10 percent chance of showers and thunderstorms. Partly cloudy, with a low around 73.
Thursday
A 20 percent chance of showers and thunderstorms. Mostly sunny and hot, with a high near 90.
Thursday Night
Partly cloudy, with a low around 74.
Friday
A 30 percent chance of showers and thunderstorms. Sunny and hot, with a high near 90.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Harrison TN
 35.11°N 85.13°W (Elev. 797 ft)
Last Update:
2:46 pm EDT Jul 10, 2026
Forecast Valid:
6pm EDT Jul 10, 2026-6pm EDT Jul 17, 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