S
M
T
W
T
F
S
30
89°
60°
31
82°
65°
1
86°
65°
2
81°
56°
3
81°
59°
4
80°
66°
5
87°
65°
6
88°
64°
7
89°
65°
8
88°
63°
9
84°
62°
10
79°
63°
11
84°
55°
12
89°
63°
13
87°
61°
14
88°
60°
15
Hist. Avg.
82°
56°
16
Hist. Avg.
82°
56°
17
Hist. Avg.
81°
56°
18
Hist. Avg.
81°
55°
19
Hist. Avg.
80°
55°
20
Hist. Avg.
80°
54°
21
Hist. Avg.
80°
54°
22
Hist. Avg.
79°
54°
23
Hist. Avg.
79°
53°
24
Hist. Avg.
79°
53°
25
Hist. Avg.
78°
52°
26
Hist. Avg.
78°
52°
27
Hist. Avg.
77°
51°
28
Hist. Avg.
77°
51°
29
Hist. Avg.
77°
50°
30
Hist. Avg.
76°
50°
1
Hist. Avg.
76°
50°
2
Hist. Avg.
75°
49°
3
Hist. Avg.
75°
49°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
September Weather in St. George
St. George's September 2026 forecast shows daily high temperatures ranging from 79° to 89°, with overnight lows between 55° and 66°. The average high for September is 85° with an average low of 62°. 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 St. George. See also: October | November | December.
