S
M
T
W
T
F
S
30
68°
56°
31
67°
58°
1
70°
57°
2
74°
55°
3
70°
52°
4
71°
52°
5
69°
56°
6
73°
57°
7
73°
57°
8
72°
56°
9
72°
57°
10
73°
57°
11
72°
56°
12
73°
57°
13
72°
56°
14
73°
57°
15
72°
54°
16
72°
47°
17
70°
49°
18
63°
55°
19
69°
54°
20
71°
55°
21
70°
53°
22
71°
50°
23
67°
50°
24
61°
52°
25
64°
54°
26
Hist. Avg.
65°
49°
27
Hist. Avg.
65°
48°
28
Hist. Avg.
64°
48°
29
Hist. Avg.
64°
48°
30
Hist. Avg.
64°
47°
1
Hist. Avg.
63°
47°
2
Hist. Avg.
63°
47°
3
Hist. Avg.
63°
46°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
September Weather in Saint George
Saint George's September 2026 forecast shows daily high temperatures ranging from 61° to 74°, with overnight lows between 47° and 58°. The average high for September is 70° with an average low of 54°. 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.