S
M
T
W
T
F
S
30
90°
76°
31
90°
76°
1
91°
77°
2
90°
76°
3
89°
75°
4
87°
77°
5
87°
77°
6
88°
76°
7
87°
77°
8
88°
77°
9
88°
76°
10
87°
76°
11
86°
75°
12
86°
75°
13
87°
74°
14
86°
74°
15
85°
75°
16
85°
74°
17
86°
75°
18
86°
75°
19
83°
73°
20
85°
74°
21
85°
75°
22
86°
74°
23
85°
75°
24
85°
75°
25
86°
74°
26
85°
74°
27
84°
73°
28
84°
74°
29
85°
74°
30
84°
72°
1
84°
72°
2
85°
73°
3
84°
73°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Saint George
Saint George's September 2026 forecast shows daily high temperatures ranging from 83° to 91°, with overnight lows between 72° and 77°. The average high for September is 86° with an average low of 75°. 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 Saint George. See also: October | November | December.
