37401 Weather (Chattanooga, TN)

Weather forecast for: Chattanooga TN

Last Update: 7:06 pm EDT Sep 10, 2026

Tonight: Mostly clear, with a low around 72. Calm wind.

Friday: A slight chance of showers and thunderstorms between 2pm and 4pm. Mostly sunny and hot, with a high near 96. Heat index values as high as 103. Calm wind becoming south around 5 mph. Chance of precipitation is 20%.

Friday Night: A slight chance of showers and thunderstorms, then a chance of showers after 2am. Increasing clouds, with a low around 73. Southwest wind around 5 mph becoming calm. Chance of precipitation is 40%.

Saturday: Showers likely, then showers and possibly a thunderstorm after 11am. High near 90. Heat index values as high as 99. Calm wind becoming south around 5 mph in the afternoon. Chance of precipitation is 90%.

Saturday Night: Showers and possibly a thunderstorm before 8pm, then a chance of showers and thunderstorms between 8pm and 2am, then a slight chance of showers after 2am. Low around 72. Calm wind. Chance of precipitation is 80%.

Sunday: A chance of showers, with thunderstorms also possible after 2pm. Mostly sunny and hot, with a high near 92. Calm wind becoming northwest around 5 mph. Chance of precipitation is 30%.

Sunday Night: A chance of thunderstorms before 8pm. Mostly clear, with a low around 71. Calm wind. Chance of precipitation is 30%.

Monday: Sunny and hot, with a high near 94.

Monday Night: Mostly clear, with a low around 70.

Tuesday: A 20 percent chance of showers and thunderstorms after 2pm. Sunny and hot, with a high near 94.

Tuesday Night: A 10 percent chance of showers and thunderstorms. Mostly clear, with a low around 71.

Wednesday: A 20 percent chance of showers and thunderstorms. Sunny and hot, with a high near 94.

Wednesday Night: A 10 percent chance of showers and thunderstorms. Mostly clear, with a low around 71.

Thursday: A 40 percent chance of showers and thunderstorms. Sunny and hot, with a high near 93.