S
M
T
W
T
F
S
30
94°
75°
31
93°
76°
1
93°
75°
2
92°
74°
3
89°
74°
4
89°
73°
5
90°
74°
6
90°
74°
7
93°
71°
8
92°
70°
9
92°
72°
10
90°
71°
11
91°
72°
12
90°
71°
13
90°
72°
14
86°
70°
15
90°
72°
16
90°
67°
17
84°
66°
18
83°
66°
19
84°
65°
20
85°
67°
21
89°
70°
22
89°
70°
23
86°
69°
24
83°
69°
25
88°
68°
26
87°
69°
27
84°
68°
28
83°
68°
29
86°
67°
30
87°
66°
1
82°
67°
2
84°
66°
3
80°
67°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Augusta
Augusta's September 2026 forecast shows daily high temperatures ranging from 80° to 94°, with overnight lows between 65° and 76°. The average high for September is 88° with an average low of 70°. AccuWeather's monthly forecast extends further ahead than any other source, with day-by-day RealFeel® Temperatures giving a complete picture of how September weather will actually feel in Augusta. See also: October | November | December.