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

Dangerous Heat over the South-Central and Southwest U.S. Through Next Week

Dangerous heat persists across the Desert Southwest through this weekend and across the Southern Plains and Lower Mississippi Valley through at least the middle of next week. Numerous daily record high temperatures are expected through at least Tuesday for much of Texas and Oklahoma as well as portions of Louisiana, New Mexico, and Arizona. Read More >

Hazardous Weather Conditions

Current conditions at

Chattanooga, Lovell Field (KCHA)

Lat: 35.03°NLon: 85.2°WElev: 679ft.

Fair

73°F

23°C

Humidity 87%
Wind Speed NW 5 mph
Barometer 29.97 in (1013.9 mb)
Dewpoint 69°F (21°C)
Visibility 10.00 mi
Last update 23 Aug 3:53 am EDT
Extended Forecast for

3 Miles W Signal Mountain TN

  • Overnight

    Overnight: Clear, with a low around 66. Calm wind.

    Low: 66 °F

    Clear

  • Sunday

    Sunday: Sunny, with a high near 86. Calm wind becoming north around 5 mph in the afternoon.

    High: 86 °F

    Sunny

  • Sunday Night

    Sunday Night: Increasing clouds, with a low around 62. North wind around 5 mph becoming calm.

    Low: 62 °F

    Increasing
    Clouds

  • Monday

    Monday: Mostly sunny, with a high near 86. Calm wind becoming northwest around 5 mph.

    High: 86 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 63. Calm wind.

    Low: 63 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Sunny, with a high near 87. Calm wind.

    High: 87 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 65. Calm wind.

    Low: 65 °F

    Partly Cloudy

  • Wednesday

    Wednesday: A 40 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 88.

    High: 88 °F

    Mostly Sunny
    then Chance
    T-storms

  • Wednesday Night

    Wednesday Night: A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 68.

    Low: 68 °F

    Chance
    T-storms

Detailed Forecast

Overnight
Clear, with a low around 66. Calm wind.
Sunday
Sunny, with a high near 86. Calm wind becoming north around 5 mph in the afternoon.
Sunday Night
Increasing clouds, with a low around 62. North wind around 5 mph becoming calm.
Monday
Mostly sunny, with a high near 86. Calm wind becoming northwest around 5 mph.
Monday Night
Partly cloudy, with a low around 63. Calm wind.
Tuesday
Sunny, with a high near 87. Calm wind.
Tuesday Night
Partly cloudy, with a low around 65. Calm wind.
Wednesday
A 40 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 88.
Wednesday Night
A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 68.
Thursday
A chance of showers, with thunderstorms also possible after 1pm. Mostly sunny, with a high near 86. Chance of precipitation is 50%.
Thursday Night
A 20 percent chance of showers and thunderstorms. Partly cloudy, with a low around 67.
Friday
A 30 percent chance of showers and thunderstorms. Mostly sunny, with a high near 87.
Friday Night
Partly cloudy, with a low around 66.
Saturday
A 20 percent chance of showers and thunderstorms. Sunny, with a high near 88.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
3 Miles W Signal Mountain TN
 35.13°N 85.4°W (Elev. 1539 ft)
Last Update:
1:26 am CDT Aug 23, 2026
Forecast Valid:
3am CDT Aug 23, 2026-6pm CDT Aug 29, 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