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

Dangerous Heat and Possible Flooding

Dangerous heat will persist across the Southwest U.S. through Saturday with daytime highs of 110-115°F. Extreme Heat Warnings remain in effect. Dangerous heat will build across the southern Plains again beginning this weekend. Heavy to excessive rain over the Carolinas Friday may lead to isolated areas of flash flooding. Read More >

Hazardous Weather Conditions

Current conditions at

Chattanooga, Lovell Field (KCHA)

Lat: 35.03°NLon: 85.2°WElev: 679ft.

Partly Cloudy

74°F

23°C

Humidity 85%
Wind Speed N 3 mph
Barometer 30.00 in (1015.0 mb)
Dewpoint 69°F (21°C)
Visibility 10.00 mi
Last update 28 Aug 3:53 am EDT
Extended Forecast for

Jasper TN

  • Overnight

    Overnight: Patchy fog. Otherwise, partly cloudy, with a low around 68. Calm wind.

    Low: 68 °F

    Patchy Fog

  • Friday

    Friday: Patchy fog before 9am. Otherwise, sunny, with a high near 89. Calm wind becoming northeast around 5 mph.

    High: 89 °F

    Patchy Fog
    then Sunny

  • Friday Night

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

    Low: 67 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny and hot, with a high near 90. Heat index values as high as 96. Calm wind becoming east around 5 mph.

    High: 90 °F

    Hot

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 70. Calm wind.

    Low: 70 °F

    Partly Cloudy

  • Sunday

    Sunday: A 20 percent chance of showers and thunderstorms after 1pm. Mostly sunny and hot, with a high near 90. Calm wind becoming southeast around 5 mph.

    High: 90 °F

    Mostly Sunny
    then Slight
    Chance
    T-storms

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 70. Calm wind.

    Low: 70 °F

    Partly Cloudy

  • Monday

    Monday: A 20 percent chance of showers and thunderstorms after 1pm. Sunny and hot, with a high near 91.

    High: 91 °F

    Mostly Sunny
    then Slight
    Chance
    T-storms

  • Monday Night

    Monday Night: Mostly clear, with a low around 71.

    Low: 71 °F

    Mostly Clear

Detailed Forecast

Overnight
Patchy fog. Otherwise, partly cloudy, with a low around 68. Calm wind.
Friday
Patchy fog before 9am. Otherwise, sunny, with a high near 89. Calm wind becoming northeast around 5 mph.
Friday Night
Mostly clear, with a low around 67. Calm wind.
Saturday
Sunny and hot, with a high near 90. Heat index values as high as 96. Calm wind becoming east around 5 mph.
Saturday Night
Partly cloudy, with a low around 70. Calm wind.
Sunday
A 20 percent chance of showers and thunderstorms after 1pm. Mostly sunny and hot, with a high near 90. Calm wind becoming southeast around 5 mph.
Sunday Night
Partly cloudy, with a low around 70. Calm wind.
Monday
A 20 percent chance of showers and thunderstorms after 1pm. Sunny and hot, with a high near 91.
Monday Night
Mostly clear, with a low around 71.
Tuesday
A slight chance of showers, with thunderstorms also possible after 1pm. Sunny and hot, with a high near 93. Chance of precipitation is 20%.
Tuesday Night
Mostly clear, with a low around 71.
Wednesday
A 20 percent chance of showers and thunderstorms. Sunny and hot, with a high near 93.
Wednesday Night
Mostly clear, with a low around 72.
Thursday
A 30 percent chance of showers and thunderstorms. Sunny and hot, with a high near 95.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Jasper TN
 35.05°N 85.63°W (Elev. 666 ft)
Last Update:
1:26 am CDT Aug 28, 2026
Forecast Valid:
2am CDT Aug 28, 2026-6pm CDT Sep 3, 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