National Weather Service Forecast for: 3 Miles WSW Chattanooga TN
Issued by: National Weather Service Morristown, TN
Updated: 2:26 pm EDT Jul 28, 2026
 
This
Afternoon
This Afternoon: A 20 percent chance of showers and thunderstorms. Sunny and hot, with a high near 96. Heat index values as high as 107. West wind around 10 mph, with gusts as high as 20 mph.
Slight Chance
T-storms
 Tonight

Tonight: A 20 percent chance of showers and thunderstorms before 10pm. Partly cloudy, with a low around 74. West wind around 5 mph becoming calm in the evening.
Slight Chance
T-storms then
Partly Cloudy
 Wednesday

Wednesday: Mostly sunny and hot, with a high near 91. Heat index values as high as 96. Calm wind becoming north around 5 mph in the afternoon.
Hot

 Wednesday
Night
Wednesday Night: Clear, with a low around 67. North wind around 5 mph.
Clear

 Thursday

Thursday: Sunny, with a high near 87. Northeast wind around 5 mph.
Sunny

 Thursday
Night
Thursday Night: Mostly clear, with a low around 65. Northeast wind around 5 mph becoming calm in the evening.
Mostly Clear

 Friday

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

 Friday
Night
Friday Night: Mostly cloudy, with a low around 70.
Mostly Cloudy

 Saturday

Saturday: Showers and thunderstorms likely, mainly after 2pm. Mostly cloudy, with a high near 86. Chance of precipitation is 60%.
T-storms
Likely
Hi 96 °F Lo 74 °F Hi 91 °F Lo 67 °F Hi 87 °F Lo 65 °F Hi 89 °F Lo 70 °F Hi 86 °F

Hazardous Weather Outlook
Heat Advisory
 

This Afternoon
 
 A 20 percent chance of showers and thunderstorms. Sunny and hot, with a high near 96. Heat index values as high as 107. West wind around 10 mph, with gusts as high as 20 mph.
Tonight
 
 A 20 percent chance of showers and thunderstorms before 10pm. Partly cloudy, with a low around 74. West wind around 5 mph becoming calm in the evening.
Wednesday
 
 Mostly sunny and hot, with a high near 91. Heat index values as high as 96. Calm wind becoming north around 5 mph in the afternoon.
Wednesday Night
 
 Clear, with a low around 67. North wind around 5 mph.
Thursday
 
 Sunny, with a high near 87. Northeast wind around 5 mph.
Thursday Night
 
 Mostly clear, with a low around 65. Northeast wind around 5 mph becoming calm in the evening.
Friday
 
 Mostly sunny, with a high near 89. Calm wind.
Friday Night
 
 Mostly cloudy, with a low around 70.
Saturday
 
 Showers and thunderstorms likely, mainly after 2pm. Mostly cloudy, with a high near 86. Chance of precipitation is 60%.
Saturday Night
 
 Showers and thunderstorms likely before 8pm, then showers likely and possibly a thunderstorm between 8pm and 2am, then a chance of showers and thunderstorms after 2am. Mostly cloudy, with a low around 72. Chance of precipitation is 70%.
Sunday
 
 Showers and thunderstorms. High near 83. Chance of precipitation is 80%.
Sunday Night
 
 Showers and thunderstorms. Low around 71. Chance of precipitation is 80%.
Monday
 
 Showers and thunderstorms likely. Partly sunny, with a high near 86. Chance of precipitation is 60%.
Monday Night
 
 Showers and thunderstorms likely. Partly cloudy, with a low around 72. Chance of precipitation is 60%.
Tuesday
 
 Showers and thunderstorms likely. Mostly sunny, with a high near 87.

 

Forecast from NOAA-NWS for 3 Miles WSW Chattanooga TN.