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

74°F

23°C

Humidity 91%
Wind Speed NW 6 mph
Barometer 30.01 in (1015.2 mb)
Dewpoint 71°F (22°C)
Visibility 10.00 mi
Last update 22 Aug 12:53 am EDT
Extended Forecast for

3 Miles NE Jasper TN

  • Overnight

    Overnight: Mostly clear, with a low around 67. Calm wind.

    Low: 67 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny and hot, with a high near 91. Heat index values as high as 96. Calm wind becoming northwest around 5 mph in the afternoon.

    High: 91 °F

    Hot

  • Saturday Night

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

    Low: 65 °F

    Partly Cloudy

  • Sunday

    Sunday: Sunny, with a high near 89. Calm wind becoming northwest around 5 mph in the afternoon.

    High: 89 °F

    Sunny

  • Sunday Night

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

    Low: 62 °F

    Mostly Clear

  • Monday

    Monday: Mostly sunny, with a high near 89. Calm wind.

    High: 89 °F

    Mostly Sunny

  • Monday Night

    Monday Night: A 20 percent chance of showers. Partly cloudy, with a low around 64. Calm wind.

    Low: 64 °F

    Slight Chance
    Showers

  • Tuesday

    Tuesday: A slight chance of showers, then a chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 89. Chance of precipitation is 30%.

    High: 89 °F

    Slight Chance
    Showers then
    Chance
    T-storms

  • Tuesday Night

    Tuesday Night: A 20 percent chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 68.

    Low: 68 °F

    Partly Cloudy
    then Slight
    Chance
    T-storms

Detailed Forecast

Overnight
Mostly clear, with a low around 67. Calm wind.
Saturday
Sunny and hot, with a high near 91. Heat index values as high as 96. Calm wind becoming northwest around 5 mph in the afternoon.
Saturday Night
Partly cloudy, with a low around 65. Calm wind.
Sunday
Sunny, with a high near 89. Calm wind becoming northwest around 5 mph in the afternoon.
Sunday Night
Mostly clear, with a low around 62. North wind around 5 mph becoming calm.
Monday
Mostly sunny, with a high near 89. Calm wind.
Monday Night
A 20 percent chance of showers. Partly cloudy, with a low around 64. Calm wind.
Tuesday
A slight chance of showers, then a chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 89. Chance of precipitation is 30%.
Tuesday Night
A 20 percent chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 68.
Wednesday
A 50 percent chance of showers and thunderstorms. Mostly sunny, with a high near 89.
Wednesday Night
A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 69.
Thursday
A 50 percent chance of showers and thunderstorms. Mostly sunny, with a high near 88.
Thursday Night
A 20 percent chance of showers. Partly cloudy, with a low around 68.
Friday
A 30 percent chance of showers and thunderstorms. Sunny, with a high near 89.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
3 Miles NE Jasper TN
 35.09°N 85.6°W (Elev. 699 ft)
Last Update:
12:06 am CDT Aug 22, 2026
Forecast Valid:
12am CDT Aug 22, 2026-6pm CDT Aug 28, 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