Dangerous Heat in the Southwest; Severe Thunderstorms and Heavy Rain in the Northeast and Mid-Atlantic

Dangerous heat will persist across the Southwest U.S. through Friday with daytime highs of 110-115°F. Heat across the southern Plains will briefly ease to near-normal by late week. Strong to severe thunderstorms may produce damaging wind, hail, a tornado or two, heavy rain and flash flooding across parts of the Mid-Atlantic and Northeast. Heavy rainfall threat continues across the Gulf Coast. Read More >

Hazardous Weather Conditions

Current conditions at

Chattanooga, Lovell Field (KCHA)

Lat: 35.03°NLon: 85.2°WElev: 679ft.

Partly Cloudy

88°F

31°C

Humidity 50%
Wind Speed SW 5 mph
Barometer 29.95 in (1013.3 mb)
Dewpoint 67°F (19°C)
Visibility 10.00 mi
Heat Index91°F (33°C)
Last update 27 Aug 3:53 pm EDT
Extended Forecast for

Jasper TN

  • This Afternoon

    This Afternoon: A 30 percent chance of showers and thunderstorms, mainly after 4pm.  Mostly sunny and hot, with a high near 90. Heat index values as high as 98. Calm wind.

    High: 90 °F

    Chance
    T-storms

  • Tonight

    Tonight: A 30 percent chance of showers and thunderstorms, mainly before 7pm.  Patchy fog after 1am.  Otherwise, partly cloudy, with a low around 68. Calm wind.

    Low: 68 °F

    Chance
    T-storms then
    Patchy Fog

  • Friday

    Friday: A 30 percent chance of showers and thunderstorms, mainly between 4pm and 5pm.  Patchy fog before 9am.  Otherwise, mostly sunny and hot, with a high near 90. Heat index values as high as 96. Calm wind becoming north around 5 mph.

    High: 90 °F

    Patchy Fog
    then Chance
    T-storms

  • Friday Night

    Friday Night: A 10 percent chance of showers and thunderstorms before 7pm.  Partly cloudy, with a low around 67. Calm wind.

    Low: 67 °F

    Slight Chance
    T-storms then
    Partly Cloudy

  • Saturday

    Saturday: Sunny and hot, with a high near 91. Calm wind.

    High: 91 °F

    Hot

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 69. Calm wind.

    Low: 69 °F

    Partly Cloudy

  • Sunday

    Sunday: Mostly sunny and hot, with a high near 91. Calm wind becoming southeast around 5 mph.

    High: 91 °F

    Hot

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 69.

    Low: 69 °F

    Partly Cloudy

  • Monday

    Monday: Sunny and hot, with a high near 92.

    High: 92 °F

    Hot

Detailed Forecast

This Afternoon
A 30 percent chance of showers and thunderstorms, mainly after 4pm. Mostly sunny and hot, with a high near 90. Heat index values as high as 98. Calm wind.
Tonight
A 30 percent chance of showers and thunderstorms, mainly before 7pm. Patchy fog after 1am. Otherwise, partly cloudy, with a low around 68. Calm wind.
Friday
A 30 percent chance of showers and thunderstorms, mainly between 4pm and 5pm. Patchy fog before 9am. Otherwise, mostly sunny and hot, with a high near 90. Heat index values as high as 96. Calm wind becoming north around 5 mph.
Friday Night
A 10 percent chance of showers and thunderstorms before 7pm. Partly cloudy, with a low around 67. Calm wind.
Saturday
Sunny and hot, with a high near 91. Calm wind.
Saturday Night
Partly cloudy, with a low around 69. Calm wind.
Sunday
Mostly sunny and hot, with a high near 91. Calm wind becoming southeast around 5 mph.
Sunday Night
Partly cloudy, with a low around 69.
Monday
Sunny and hot, with a high near 92.
Monday Night
Mostly clear, with a low around 70.
Tuesday
Sunny and hot, with a high near 93.
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.
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ABOUT THIS FORECAST

 
Point Forecast:
Jasper TN
 35.07°N 85.63°W (Elev. 666 ft)
1:26 pm CDT Aug 27, 2026
3pm CDT Aug 27, 2026-6pm CDT Sep 2, 2026
 
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Additional Resources

Radar & Satellite Image

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Hourly Weather Forecast

National Digital Forecast Database