S
M
T
W
T
F
S
30
64°
57°
31
63°
59°
1
65°
58°
2
69°
55°
3
66°
53°
4
67°
53°
5
65°
57°
6
69°
58°
7
69°
58°
8
68°
57°
9
68°
58°
10
69°
58°
11
68°
57°
12
69°
58°
13
68°
57°
14
69°
58°
15
68°
56°
16
68°
49°
17
66°
50°
18
60°
56°
19
65°
57°
20
68°
57°
21
66°
55°
22
66°
52°
23
64°
52°
24
65°
49°
25
Hist. Avg.
65°
49°
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 St. George
St. George's September 2026 forecast shows daily high temperatures ranging from 60° to 69°, with overnight lows between 49° and 59°. The average high for September is 67° with an average low of 56°. 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.
