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

Risks of Severe Thunderstorms and Excessive Rainfall in the Central U.S.; Fire Weather Concerns in Alaska and Southwest

An expansive storm system will bring widespread storms with a threat for flash flooding and severe weather to much of the central to eastern U.S. into early this week. Critical fire weather conditions are expected across interior Alaska this weekend. Elevated fire conditions also expected in the Southwest U.S.. Conditions will remain uncomfortably hot across the southern Plains and the Southeast. Read More >

Current conditions at

Chattanooga, Lovell Field (KCHA)

Lat: 35.03°NLon: 85.2°WElev: 679ft.

Fair

68°F

20°C

Humidity 87%
Wind Speed Calm
Barometer 29.98 in (1014.3 mb)
Dewpoint 64°F (18°C)
Visibility 10.00 mi
Last update 21 Jun 12:53 am EDT
Extended Forecast for

3 Miles SSW Harrison TN

  • Overnight

    Overnight: Clear, with a low around 65. Calm wind.

    Low: 65 °F

    Clear

  • Sunday

    Sunday: A 10 percent chance of showers and thunderstorms after 4pm. Sunny, with a high near 88. Calm wind becoming south around 5 mph in the afternoon.

    High: 88 °F

    Sunny then
    Slight Chance
    T-storms

  • Sunday Night

    Sunday Night: A slight chance of showers and thunderstorms before 8pm, then a chance of showers and thunderstorms after 3am. Increasing clouds, with a low around 72. South wind around 5 mph. Chance of precipitation is 40%.

    Low: 72 °F

    Slight Chance
    T-storms then
    Chance
    Showers

  • Monday

    Monday: A chance of showers and thunderstorms, then showers and possibly a thunderstorm after 2pm. High near 86. Southwest wind around 10 mph, with gusts as high as 20 mph. Chance of precipitation is 90%.

    High: 86 °F

    Chance
    T-storms then
    T-storms

  • Monday Night

    Monday Night: Showers and possibly a thunderstorm before 11pm, then showers likely. Low around 71. Southwest wind around 5 mph becoming calm in the evening. Chance of precipitation is 80%.

    Low: 71 °F

    T-storms then
    Showers
    Likely

  • Tuesday

    Tuesday: A chance of showers, with thunderstorms also possible after 11am. Partly sunny, with a high near 85. Calm wind becoming northwest around 5 mph in the afternoon. Chance of precipitation is 50%.

    High: 85 °F

    Chance
    Showers then
    Chance
    T-storms

  • Tuesday Night

    Tuesday Night: A 30 percent chance of showers and thunderstorms, mainly before 8pm. Partly cloudy, with a low around 67. Northwest wind around 5 mph becoming calm.

    Low: 67 °F

    Chance
    T-storms

  • Wednesday

    Wednesday: A 30 percent chance of showers and thunderstorms, mainly after 2pm. Mostly sunny, with a high near 85.

    High: 85 °F

    Chance
    T-storms

  • Wednesday Night

    Wednesday Night: A 30 percent chance of showers and thunderstorms, mainly before 8pm. Partly cloudy, with a low around 68.

    Low: 68 °F

    Chance
    T-storms

Detailed Forecast

Overnight
Clear, with a low around 65. Calm wind.
Sunday
A 10 percent chance of showers and thunderstorms after 4pm. Sunny, with a high near 88. Calm wind becoming south around 5 mph in the afternoon.
Sunday Night
A slight chance of showers and thunderstorms before 8pm, then a chance of showers and thunderstorms after 3am. Increasing clouds, with a low around 72. South wind around 5 mph. Chance of precipitation is 40%.
Monday
A chance of showers and thunderstorms, then showers and possibly a thunderstorm after 2pm. High near 86. Southwest wind around 10 mph, with gusts as high as 20 mph. Chance of precipitation is 90%.
Monday Night
Showers and possibly a thunderstorm before 11pm, then showers likely. Low around 71. Southwest wind around 5 mph becoming calm in the evening. Chance of precipitation is 80%.
Tuesday
A chance of showers, with thunderstorms also possible after 11am. Partly sunny, with a high near 85. Calm wind becoming northwest around 5 mph in the afternoon. Chance of precipitation is 50%.
Tuesday Night
A 30 percent chance of showers and thunderstorms, mainly before 8pm. Partly cloudy, with a low around 67. Northwest wind around 5 mph becoming calm.
Wednesday
A 30 percent chance of showers and thunderstorms, mainly after 2pm. Mostly sunny, with a high near 85.
Wednesday Night
A 30 percent chance of showers and thunderstorms, mainly before 8pm. Partly cloudy, with a low around 68.
Thursday
A 20 percent chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 86.
Thursday Night
A 20 percent chance of showers and thunderstorms. Partly cloudy, with a low around 68.
Friday
A 20 percent chance of showers and thunderstorms. Mostly sunny, with a high near 86.
Friday Night
A 20 percent chance of showers and thunderstorms. Partly cloudy, with a low around 68.
Saturday
A 30 percent chance of showers and thunderstorms. Mostly sunny, with a high near 86.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
3 Miles SSW Harrison TN
 35.09°N 85.16°W (Elev. 787 ft)
Last Update:
1:06 am EDT Jun 21, 2026
Forecast Valid:
1am EDT Jun 21, 2026-6pm EDT Jun 27, 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