As of 13:48 EDT

Chattanooga, TN weather in September

88°

Chattanooga, Sunday, 9 August, 13:48

Overcast. Feels like 100°. High 88°, low 71°.

Pressure30.12 inHg

Wind2 mph E

Humidity69%

Visibility6.2 mi

Dew point77°

See detailed hourly forecast

In September, Chattanooga, TN averages a high of 80.8° and a low of 64°. About 3.9 inches of precipitation fall over the month (9 wet days). The record high is 97.5° (1990) and the record low 39° (1967). Normals are computed over the last 60 years.

Day	High	Low	Chance of precip.	Record high	Record low
1	84.6°	68.4°	42%	94.1° (1993)	59.5° (1967)
2	84.6°	68.2°	30%	95.4° (2011)	59.5° (1987)
3	84.2°	67.8°	37%	97.2° (2011)	55.6° (2017)
4	84°	67.3°	37%	97° (2019)	59.2° (1967)
5	83.8°	66.9°	30%	95.9° (1975)	55.2° (1997)
6	83.3°	66.6°	28%	95.5° (1990)	55.4° (1984)
7	83.7°	66.4°	18%	97.5° (1990)	52.2° (2017)
8	83.5°	66.4°	20%	94.1° (1990)	55° (2017)
9	83.5°	66.4°	25%	94.5° (2019)	57.2° (2024)
10	82.8°	65.7°	38%	93.7° (2002)	54° (1998)
11	82.8°	65.1°	30%	92.7° (2019)	50.5° (1976)
12	82.2°	64.8°	32%	94.3° (2019)	52° (1976)
13	81.9°	65.1°	30%	95.4° (2019)	52.9° (2015)
14	82.2°	65.1°	23%	93° (1991)	51.1° (2015)
15	81.5°	64.6°	28%	94.3° (1991)	51.6° (1985)
16	80.4°	63.9°	30%	94.8° (2019)	52° (1961)
17	79.9°	64.6°	38%	96.4° (2019)	51.3° (2000)
18	80.1°	63.7°	32%	93.2° (1991)	48.7° (1981)
19	80.6°	63°	30%	92.1° (2010)	45° (1981)
20	81.3°	63.9°	33%	94.8° (2018)	51.6° (1981)
21	79.9°	63.1°	37%	93.6° (2010)	49.6° (2006)
22	79°	62.1°	28%	93° (2010)	46.4° (1983)
23	78.4°	61°	27%	91.2° (2024)	46.9° (1983)
24	77.5°	61.2°	32%	92.1° (2016)	44.2° (1983)
25	77.7°	61.2°	32%	94.3° (2016)	49.3° (1965)
26	77°	61.5°	35%	90.7° (2019)	43.2° (2001)
27	76.8°	60.8°	37%	93.2° (2019)	45.5° (2001)
28	76.5°	60.1°	23%	90.9° (2019)	46.4° (1985)
29	75°	58.5°	23%	91.9° (2019)	41.2° (1967)
30	75.9°	57.6°	22%	94.5° (2019)	39° (1967)