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

Chattanooga, Lovell Field (KCHA)

Lat: 35.03°NLon: 85.2°WElev: 679ft.

Fair

76°F

24°C

Humidity 64%
Wind Speed Calm
Barometer 30.00 in (1014.9 mb)
Dewpoint 63°F (17°C)
Visibility 10.00 mi
Heat Index78°F (26°C)
Last update 10 Sep 10:53 pm EDT
Extended Forecast for

Signal Mountain TN

  • Tonight

    Tonight: Mostly clear, with a low around 69. Calm wind.

    Low: 69 °F

    Mostly Clear

  • Friday

    Friday: A slight chance of showers and thunderstorms between 2pm and 5pm. Mostly sunny, with a high near 89. Calm wind becoming south around 5 mph. Chance of precipitation is 20%.

    High: 89 °F

    Sunny then
    Slight Chance
    T-storms

  • Friday Night

    Friday Night: A slight chance of showers and thunderstorms, then a chance of showers after 2am. Increasing clouds, with a low around 70. Calm wind. Chance of precipitation is 40%.

    Low: 70 °F

    Slight Chance
    T-storms then
    Chance
    Showers

  • Saturday

    Saturday: Showers likely, then showers and possibly a thunderstorm after 11am. High near 84. Calm wind becoming south around 5 mph in the afternoon. Chance of precipitation is 90%.

    High: 84 °F

    Showers

  • Saturday Night

    Saturday Night: Showers and possibly a thunderstorm before 8pm, then a chance of showers and thunderstorms between 8pm and 2am, then a slight chance of showers after 2am. Low around 69. Calm wind. Chance of precipitation is 80%.

    Low: 69 °F

    Showers then
    Chance
    Showers

  • Sunday

    Sunday: A chance of showers, with thunderstorms also possible after 2pm. Mostly sunny, with a high near 86. Calm wind. Chance of precipitation is 30%.

    High: 86 °F

    Chance
    Showers

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 68. Calm wind.

    Low: 68 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 87.

    High: 87 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 67.

    Low: 67 °F

    Mostly Clear

Detailed Forecast

Tonight
Mostly clear, with a low around 69. Calm wind.
Friday
A slight chance of showers and thunderstorms between 2pm and 5pm. Mostly sunny, with a high near 89. Calm wind becoming south around 5 mph. Chance of precipitation is 20%.
Friday Night
A slight chance of showers and thunderstorms, then a chance of showers after 2am. Increasing clouds, with a low around 70. Calm wind. Chance of precipitation is 40%.
Saturday
Showers likely, then showers and possibly a thunderstorm after 11am. High near 84. Calm wind becoming south around 5 mph in the afternoon. Chance of precipitation is 90%.
Saturday Night
Showers and possibly a thunderstorm before 8pm, then a chance of showers and thunderstorms between 8pm and 2am, then a slight chance of showers after 2am. Low around 69. Calm wind. Chance of precipitation is 80%.
Sunday
A chance of showers, with thunderstorms also possible after 2pm. Mostly sunny, with a high near 86. Calm wind. Chance of precipitation is 30%.
Sunday Night
Mostly clear, with a low around 68. Calm wind.
Monday
Sunny, with a high near 87.
Monday Night
Mostly clear, with a low around 67.
Tuesday
A 20 percent chance of showers and thunderstorms after 2pm. Sunny, with a high near 87.
Tuesday Night
A 10 percent chance of showers and thunderstorms. Mostly clear, with a low around 68.
Wednesday
A 30 percent chance of showers and thunderstorms. Sunny, with a high near 87.
Wednesday Night
A 30 percent chance of showers and thunderstorms. Mostly clear, with a low around 68.
Thursday
A 40 percent chance of showers and thunderstorms. Sunny, with a high near 87.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Signal Mountain TN
 35.15°N 85.35°W (Elev. 1709 ft)
Last Update:
7:06 pm EDT Sep 10, 2026
Forecast Valid:
11pm EDT Sep 10, 2026-6pm EDT Sep 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