S
M
T
W
T
F
S
30
85°
60°
31
85°
60°
1
87°
61°
2
87°
64°
3
88°
64°
4
88°
62°
5
87°
64°
6
83°
62°
7
84°
60°
8
88°
62°
9
86°
63°
10
87°
62°
11
87°
62°
12
86°
61°
13
86°
60°
14
85°
61°
15
87°
61°
16
86°
62°
17
Hist. Avg.
83°
58°
18
Hist. Avg.
83°
58°
19
Hist. Avg.
82°
57°
20
Hist. Avg.
82°
57°
21
Hist. Avg.
82°
56°
22
Hist. Avg.
82°
56°
23
Hist. Avg.
81°
56°
24
Hist. Avg.
81°
55°
25
Hist. Avg.
81°
55°
26
Hist. Avg.
80°
54°
27
Hist. Avg.
80°
54°
28
Hist. Avg.
80°
53°
29
Hist. Avg.
79°
53°
30
Hist. Avg.
79°
52°
1
Hist. Avg.
79°
52°
2
Hist. Avg.
78°
51°
3
Hist. Avg.
78°
51°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
September Weather in Zion
Zion's September 2026 forecast shows daily high temperatures ranging from 83° to 88°, with overnight lows between 60° and 64°. The average high for September is 86° 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 Zion. See also: October | November | December.